Two big blind hands from the UB million dollar freeroll

[incognito]

1st hand, I'm the big blind with Qh Ts and T6270 (after posting a big blind of 150.) A short stack goes all-in from middle position for 885. He's been incredibly loose throughout. All fold to me. Fold or call? If fold, what do you need to call in this spot?

2nd hand, I'm the big blind with Ah Kh and T5835 (after posting a big blind of 200.) Folded to the small blind who raises to 600 with 4300 behind. Raise or call? If raise, do you push? If call, do you plan to push the flop? I've just been moved to the table, so no real reads. But there's been some stealing and no flops in the orbit I've been here.