[QUOTE=EJsGirl]
The next time my dad is riding his, I could ask him if I could punch him in the face. Strictly for research purposes, of course…
Somehow, I don’t think he’ll go for it.
[/QUOTE]
This is probably a case where it’s easier to ask for forgiveness rather than ask for permission.
It really won’t make a difference to your dad or the result of the experiment, but I suggest yelling “Gotcha ya!” when you unexpectedly throw the punch.