He was hitting on you.
As far as stupid quotes, I don't really have any original ones to add. Just the usual "but, I don't want to get too big". The other day I did have this newbie guy come up to me and ask me a bunch of questions about exercises. I answered them as concisely as I could, as I realized that he was a newbie and wanted to set him on the right track.
He then asked me for some exercises to work his traps. I told him "shrugs and rows are good, upright rows work as well. But, personally I feel that Deadlifts and Rack deadlifts are the best." To which he replied "oh, I can't do deadlifts, my chiropractor says they're bad for your back."
Seriously, what is it with people who are supposed to be in the health field (doctors, chiros, PT's (physical therapists) not having a clue about exercise, and being completely misinformed about certain exercises in particular?