How is that cheating? What rule would it break? Oh, none. And jfg, what did you think I was doing last night when I unvoted if you only realized it now?
If it was part of the game looks like you peaked out from behind cover to see if you could spot the shooter and got hit between the eyes.
I'd say a better comparison is I threw a grenade in the room I was in and didn't get out quick enough.