My friend says I look stupid with glasses. How can I tell him that I need them?

I lost my contacts so I need to wear my glasses but my friend (yes He’s my friend) tells me to take them off and leave them off for a day but I can’t. Not Until next week after I get new contacts in the mail from Wal-Mart. Without my glasses, I’m as blind as a bat. I mean I can’t see at all.