The risk is too much for using suicide grip especially when you are doing your exercises almost to failure; and accident do happened. Late last year, a powerlifter was dead because of his grip slipped while doing bench press and the barbell + bench fell on his ribcage, destroying his internal organs. Guess what grip he used that time?

Ehem2, I would suggest you to not say anything about the big black pad that people use to wrap the barbell with.

I speak from past experience