Some of Murphy’s Combat Laws:

If it’s stupid but it works, it isn’t stupid.
Try to look unimportant; the enemy may be low on ammo and not want to waste a bullet on you.
If at first you don’t succeed, call in an airstrike.
If you are forward of your position, your artillery will fall short.
Never share a foxhole with anyone braver than yourself.
Never go to bed with anyone crazier than yourself.
Never forget that your weapon was made by the lowest bidder.
If your attack is going really well, it’s an ambush.
The enemy diversion you’re ignoring is their main attack.
The enemy invariably attacks on two occasions: when they’re ready. & when you’re not.