How do you handle situation when you husband is in temper?

When I was married with my ex-husband, he would have terrible temper tantrums even for the slightest things. Initially, it got on my nerves that I was being blamed for the littlest thing that wasn't even my mistake nor would it have made any difference to anything that would matter. Gradually, after my son was borned, I got better at turning a dead ear at his tantrums and would lock myself and baby in the room if he goes into one of his rage.