On the bubble in a live tourny

[Shammu]

Ok, I have been burned by this play before so I decided to post and see what am I doing wrong. Live $115 tourny, 100 players, 15 left, top 10 get paid. Blinds are 1000/2000 and I have about 17,000, I'm a little below average, there aren't many low stacks left. I'm sb and everyone folded to me, I have A8o, what would you do? BB has gone all-in many times in the last few rounds and noone called. He seems to be a solid player.

BB has me covered by few chips