If it's stupid but works, it isn't stupid. When in doubt empty the magazine. Never share a fox hole with anyone braver than you. Anything you do can get you shot. Including doing nothing.
Mines are equal opportunity weapons.
A Purple Heart just proves that were you smart enough to think of a plan, stupid enough to try it, and lucky enough to survive. Five second fuses only last three seconds. It is generally inadvisable to eject directly over the area you just bombed.