This. Also, after getting the typical "Of course you'l get in somewhere!", I was trying to explain that mine is a small field, it IS hard to get in, etc., and someone said "Well, can't you just apply in a different, easier field to get into, and then transfer?"
Also, my grandma, who is super excited about the idea of someone in the family going to grad school ("We've never had a Dr. ___!") keeps trying to "help" me by trying to get me to contact her friends. "Well, I once met the wife of Dr. So-and-so (in completely unrelated field), and I think he's emeritus (she's forgetten he's a little bit deceased)- you HAVE to call him and tell him you know me. He'll get you in!" I love her, but I've given up trying to explain how admissions works, and that art history and phschiatry aren't likely to be done by they same post-emeritus (late) professor.
Edit: also today I got "My friend just got into every law school she applied to- Harvard, Yale- all of them! You're as smart as she is, so you should be fine."