Two Hands from Party 34K (Deep Stacks)

[People_Mover]

2217, down to 50. Blinds 1500/3000. Hero has 28K. I haven't tried to steal blinds much and have been quiet for the last 30 minutes. Button (Villian) has me covered by a few thousand and has been fairly active. Most pots taken down preflop. We both have SB and BB covered by around 8K or so.

Folds around to Hero in the CO with A [img]/images/graemlins/spade.gif[/img]8 [img]/images/graemlins/diamond.gif[/img]

Hero raises to 10K. Button Raises all in to 42K. Hero goes into the tank and folds. [img]/images/graemlins/frown.gif[/img] He said AK. Is this a fold preflop?

Hand #2 - 18 left. 5000/10000 blinds

Hero still card dead posts 5K with 14K behind. 2 limpers, Hero pushes with 6 [img]/images/graemlins/diamond.gif[/img]5 [img]/images/graemlins/heart.gif[/img]. This is the correct play right to take a chance to quad up? There was so way I was making the final table without doubling twice. 5 bricks and I was out in 15th.