yea totally, I think that play fighting, sarcasm thing can be really important between friends, and I give and take it loads in my family......but with anybody who I haven't known for more than about 10 years, I just can't do the sarcasm thing.....because I always feel so mean doing it!....and when others do it to me, I can sometimes take it, but usually I get scared that it will lead onto bullying and I won't be able to defend myself.
So personally I prefer it when most people don't do the play fight thing with me.