FGT - agree with TWR about taking noting times, dates etc should he be bullying then see your union rep (presumably you have a union rep in Gov)
If you can't mourn your mum then don't - celebrate having a better stepmum. Why bite your tongue?, give people your opinion - if they don't like it then tough sh!t.
TWR - Have you got a dictaphone? No, she's a woman and uses her finger (lol)