the A9 is forever known as the Matt Damon hand at the beginning of Rounders, it won't be layed down.

Seriously though, these bets confuse me because my method of thinking is not right.. When I see that bet I immediately think "hmm, he wants a card for free, there's a flush draw out there, he'd surely protect his top pair and deny me odds to draw to anything, I'll raise him"

I have similar situations come up online (except worse, like 200 into 1200 pot) I'll raise only to see them raise me, now I play those situations more cautiously.