I would do it differently.
Have two one dollar bills easily reachable in your pocket.
Offer it to them, but with your arm not extended at all, with your hand hardly in front of your hip, so that they have to step in near you to take it.
Kick them in the knee when they do.
If there is any crowd there, they will immediately become spectators when they see the ‘robber’ writhing on the ground.
Not in the balm world. You’re dreaming
Run to one of the men and grab his hair. Pull backward and downward with all your might to snap his neck.
That is how you stop vermin.
The other will flee when he sees his friend’s body uncontrollably jerking in death.