Escapologist. Always a great crowd puller.
Volunteers from the audience would bind him in chains and ropes and then
put him into a scruffy hessian sack
After I few minutes of dramatic writhing, grunting and groaning, he
would emerge from the sack free of his chains.
The kids in the audience would breath a sigh of relieve then 'do a runner'
before he came round with the hat!