No roll is bomb proof, not to mention I've been bodily ripped out of my boat by waves a few times. We all swim, it's just a matter of time so we should all practice our rescues not only in the flat, but in the conditions in which we intend to paddle and are most likely to capsize in.
Amen, Mark. I just posted about a ripped-off experience in the Scariest SK Experience thread. Oh, what a surprise it is!