I have the following character traits which I am not very proud of - and consequently try to squash them:
a) Very intolerant of annoying people - sometimes I have to sit on my hands to avoid slapping them. 
b) Can become enraged over trivial domestic issues (e.g. jars I cannot open/electrical items that stop working)
.
c) Impatient - I am often to be caught out drumming my fingers with irritation when DH (or anyone else for that matter) causes a delay by faffing about or chatting to people for aaaaaages. 
d) I have to be "right" - even when I'm wrong. And I hate admitting I'm wrong 
I find I'm getting better with age - I'm maybe mellowing ?