My last helper didn't need any help when it came to making us laugh.

Several times, he helped dig a ditch, climb out, turn to see a pretty lady- and step right into the ditch he'd just come out of.
Or, he'd reach into a ceiling- and kick the ladder away from himself.

Of course, he THOUGHT we were making fun of him a few times.
Like the time I produced a porta-band. He looked at me accusingly, for all the cut's I'd had him make with a hacksaw.
Or the ground rod I had him pound in by hand - the first 6 ft went pretty easy-, producing the jackhammer only when we hit rock. Of course, he'd never tried hauling a jackhammer up a ladder!