Two possible responses could have resulted based on looking at the above pics. One from the frat guys perspective, the other from the sorority gals perspective.

Frat guys- "Hey who's the old dude drinking all our beer and honin in on OUR chicks?"

Gals- "Hey who's dad is that old guy who kicked Biff's and Carson's ass drinking beer..Well, Like he's kinda cute...for an old guy. Lets get a picture with him!

You Rock RT!!!!