"Arrrrgghhhhh !!! I cant open this Jam Jar, I'm too old to ask my Dad to do it. I'm going to look like a wimp if I can't open it in front of my girlfriend"
If you want to look tough when your not, tap the sides of the lid against a working top when she isn't looking.
Then try again...."Yesssss!!! the lid comes off I'm a hero!"!