Well, I think that's where the "he probably hoped to get out alive" part comes in. I don't think Tony was being actively suicidal when he kicked the whole brain-delete sequence off (though I do think that if it came to immediate danger of being taken in and vivisected, he would've found a way to off himself).

Or Fractions Not a Very Good Writer.

There you go bringing common sense and logic into it. :-P