Just because the planner of the party thinks that the idea will be awesome, doesn’t mean that the surprise will be awesome for the recipient.
I hate/dread surprises and here are a few possibilites of things that would be horrible for me:
Someone that I used to date or that I used to be friends with is invited to the party or just shows up. The party planner might think that I would want to see these “old friends” but he might not know that we had a painful falling out and I never want to see them again.
The time and date of the party is unknown to me and I am simply not prepared because I don’t feel well, might have my period, am not dressed appropriately (which would be extremely embarrassing to me) I might not have washed my hair or put on any makeup or I may have failed to trim my scraggly fingernails or I may have a zit. Or I may have made other plans (that the party thrower is not aware of) and I would feel angry or deprived of not being able to go to the event that I had already set up, or irritated that I now have to cancel my original plans (including dealing with all of the details, people, tickets, reservations etc)
The party planner has brought people into my house, when I personally have not been the one to agree that my house is suitable for company. I may not have cleaned at all, or to my own satisfaction (so as to avoid embarrasment) or I may have left out certain items that are not meant for public display. I have not been given the choice of making plans for my pet not to be subjugated to a crowd. And I may not enjoy having crowds (especially drunk or messy or careless people, which pretty much sums up my entire extended family and group of friends) in my house (and that’s why we always go to their houses instead).
I absolutely hate being the center of attention. It’s embarrssing for me. I don’t like people singing happy birthday to me either, it’s disgraceful, especially for women over a certain age. Also, I don’t want people asking me about my age or any other personal questions that I am not prepared to answer (I am more prepared to answer, and turn the subject away from myself if I know who I am going to be dealing with ahead of time).
I’m very organized, and most random party throwers are not. That makes me insane, when I see how a party was badly planned (like they didn’t order enough food, they didn’t make sure to find out who was a vegetarian and who had food allergies, or who doesn’t drink alcohol, or they didn’t have enough plates, cups or utensils).
I would never host a huge party in my home, because I can’t stand the idea of my stuff getting damaged or stained. Most of my relatives, who host huge parties all of the time (and I’m grateful for them for that reason) do not mind/care at all if red wine gets spilled on their carpeting, or if nacho cheese gets ground into their couch cushions or if coke gets splashed onto their ceiling. Doesn’t faze them one bit, but for me, I would rather be in the dentist’s chair getting a crown replaced than to have that scenario.
I also don’t like to have too much noise for too long of a period, do not like to have people parking in my neighborhood where they are not supposed to park (like in the fire lane or on my grass, or blocking my next door neighbor’s driveway).
I also loathe the possibility of someone giving me a gag gift, which they find to be funny or silly, but which I perceive to be lewd or embarrassing. I would die if someone brought a stripper or a bag of dildos to a party for me. And I would find it equally embarrassing if anyone gave me a gift that was ridiculously, inappropriately expensive.
Basically, I am a planner by nature and I just do not like surprises. I don’t like being put on the spot, either. There are enough awful surprises that happen to me on any given day, to which I have no power to control, so I certainly don’t want my SO to give me any more surprises. Plus I am pretty up front about what I do like and what kind of person I am, so it would also be a little bit insulting if I told my SO that I don’t like surprises, but he went ahead and did that anyway. My cousin did that for her Mom’s 70th birthday, and my aunt was not thrilled, she was embarrassed and not feeling well and didn’t look very good on that day. We all warned my cousin not to do it, because we know that her Mom is a very private person, but my cousin thought it would be “fun.” It wasn’t.