In the semi coherent state that I play crpg in, ctrl Ming someone is never out of malice or video game anger, I just find it a funnier option than not ctrl Ming someone. Sorry.
Strangely enough, when someone teamhits me during a 2 v 1 and causes me to die, or teamkills me outright, I never ctrl M that person because I assume they feel like a shitty. Then if I get lightly bumped by a friendly cav for no damage and no knockdown, away from any enemies, there is an 80% chance that I will wait about 10 seconds and ctrl M that person.
Don't read too much into people reporting you and just roll with it.
edit: saying "sorry" or "sry" during a fight, just makes me want to report even more (q-q-a is borderline acceptable as long as you dont die while doing it). I would MUCH rather you say nothing and just continue fighting. This is a personal thing as it seems most people feel the opposite way about it.