Here is one.
When i first got the game, i started a career and in my 3rd patrol my crew spotted an aircraft ( i don't remember what aircraft it was, i think it was a catalina) and i ordered crash dive and for some reason i ignored the shallow water warning and i hit the ground at 20m depth and i also got depth charged by the plane
. I only escaped by a miracle and managed to get home with my hull integrity down to 14%
ooooops!!!!