Ill make this short.

Im in my late 20s and girls at early 20's (and some 18-19) never fail to shit test me with the "your old" shit test.

Usually i smile and ignore, id dosnt bother me but i would like some ideas.

So far the best one was "try and keep up with grampa", which sucks but it got a giggle.

Anyone else delt with this? Thanks innadvance