with my newly printed PPL(H) took my parents on our first trip in my 44...
Sat there turning over the engine but it didn't fire into life...
Told parents to go and grab a coffee whilst I pretended to tinker with things (checking fuel lines etc - but not really knowing what I was looking for!) Parents by now very worried at the sound of a non functioning, non firing engine!
Finally re-reading the checklist..........MIXTURE RICH.... I hadn't pushed it in...............................

, push it in and it fires into life....