I see you still come on here Gary.
Do your students know that what you teach is made up nonsense?
Incidentally if your 7th "duan" father can't do over 100 sit-ups then should he have that grade? I bet you can't do more than 20 without swinging your arms.
I bet Andy Crittenden can't even do 1.
You should be teaching your students the value of a healthy lifestyle, not made up kata dances and poking people in the foot with a kubotan.
Come on chap, you're doing yourself no favours by staying quiet...