I haven't used the Ram quite yet, but the burn from a Sunsinger melee not proc'ing has screwed me over in trials more times than I can say. The only explanation for life steal is that it doesn't heal instantly so perhaps you got pegged by bullet and it was stopped? I think my favourite one however is turning a corner, taking one shot and being downed instantly by a Monte Carlo. And I mean, instantly like a sniper headshot. Oh, and how about when a blade dancer on my elimination team slashed a Warlock three times in a corner, turned around and got punched by the same Warlock only to die instantaneously.