I think it would be entirely justified myself.
Picture the scenario, I go to the fridge after a hard day at college and an even harder afternoon looking after the 4 DCs on my own as DH IS OUT FOR A MEAL WITH WORK NOW, go to take out the leftover chinese that I have been dribbling about since lunchtime and it's not fecking there 
DH was working at home today and has stuffed his face with it
WIBU to kill him and cut him into tiny pieces? No jury in the land would convict surely?