And when her son tells her that game is crap, that poor mom will think:
"Oh, that not-so-polite young man at the game store was right!"
But seriously, it's respectable what you tried to do, but you should know you would scare them talking like this. I prefer the "I wouldn't buy this game if i were you... and then walk away" approach, mostly because i don't really care and people's reaction is way funnier :P
Flow -"The important is to pwn other ppl"