Friends, this is Masterclass #2 in 'How to Persuade Dad'. It's called 'The Watch and Grab'.
Get as close as you can, then slowly inch closer. Wait for your moment of opportunity.
It rarely works though, unless Dad's distracted by something!
Effectiveness rating: 1/10... 'try your luck' category!

Dad: the wife insisted I post this photo, amidst lots of giggling - I think I prefer the one of me in the tie. :-)

Thank you for our 21000th comment Von!!