I am not saying all muscleheads are meatheads. There are some really smart strongmen out there.
This is not one of them.
Pull it by the stick? Of course it will vaccuum seal tighter and you won't get it off.
Break the vaccuum by easily lifting the edge a small bit, and it would come off just as easily as a hat.
Even a toddler who has played with suction cups will know this.
The bald guy is Nick Best. Probably the oldest active competing strongman in the world until last year. The one who put the plunger is Eddie Hall, world strongestman 2017. They are buddies since they starred in the show "The Strongest Man in History". 2 other star of the show were Brian Shaw and Nick oberest. Nick is like the nice grandpa that they always prank.
I have seen the old plunger on the bald mans head before, but it will never not be funny. It is like an upgrade on the pie in the face, but more humiliating.