I'm Grumpyhack because I used to be a journalist - hence the hack bit.
I was watching one of the Grumpy Old Men series on the TV and found myself agreeing with everything they were saying, so realised that I'd become a Grumpy Old Man.
The avatar is a photo of a cuddly toy I was given as a thank you at the end of a course I'd delivered. He stays in my teaching bag of equipment and comes with me and sits on my desk on all courses I teach to help people remember my name.
I usually begin courses by telling his story. I was given him by a learner and I was really touched. He'd got the beard and even my name Pete. But the learner was a 'Del Boy' character who bought and sold things at markets. He then admitted he'd bought a box of 2,000 little men. When he got home and opened the box he discovered they all had the name Pete. So he was looking for 2,000 people called Pete to unload them on and I was the first to come along.
When I became a grand dad my daughter asked what I'd like to be known as to her twins: gran dad, gramps, grampy or what? And the answer had to be 'Grumpy'.