Alright, story time: Back when Crota HM was still the toughest challenge in Destiny, my friends and I used the Ogre room strat (like pretty much everyone else).
We drop the first Ogre and my buddy pops a Ward. Confident in my abilities, I ready my sniper, bathe in the Blessing of Light, and step forward to take my shot at Shrek's wife. I pull the trigger and instantly die. There was no death sound, and my Exo didn't make a peep. The Oversoul appears and melts my team.
Turns out I hadn't left the Ward completely and my Skip Rounds.... [i]backfired[/i].
(I haven't used Skip Rounds on a sniper since.)