One too many tricks up a sleeve

I  like to play poker, but not as much as rummy
Something happened the other night, because I'm such a dummy

Usually, my plans are pulled off- without the slightest hitch
But just once- things went wrong, and everyone's calling me a _____

I'm like a sneaky, slithering little bunny
Slipping from table to table, scraping up everyone's money

Then, all of a sudden- things took a turn for the worse
My mind went completely blank- while reaching in my purse

I think I got confused & starting thinking "is it an ace, or is it a joker?"
I got the games mixed up, I was playing rummy and not some poker

Blast, I fumbled while pulling a trick out of my sleeve
Next thing you know, everyone was quickly asking me to leave

I've had some tricks up my sleeve, they think I'm a really bad player
So now at night before I go to bed, I have to say an extra prayer