My biggest mistake. Which I guess isn't really my mistake but I still feel crap about it (and I'm sure many other people feel the same)

Is that all my childhood transformer toys were thrown/given away by my parents because I stopped playing with them.

In fact, I do have a real mistake. When i was in year 4 I gave away my G1 Scattorshot to a friend for his birthday because I wanted him to be my best friend

Damn U Giles Broughton, I want my Scattorshot back!

Lesson learnt: Don't have best friends!