That is to say that he yelled hard because they weren't boys at all.
"WOMBLES!"
He drew himself up to his full fifteen feet, which almost caused his ladder to topple. "You know perfectly well that wombles aren't allowed in the park. Out!"
"What?"
"OUT!"
"WHAT? You can not be --- er, I mean yes sir. Sorry sir. Leaving right now -- sir."
broken door shut, just as the engine died for the third time. He looked at the old folks' coach party, half of whom had dozed off, then started to sing --
"The wheels on the bus go wobble and squeak, wobble and squeak, wobble and squeak ---
the old mansion door slowly opened, it was dark inside, windows boarded up. Looking into the room all he could see was a faint glimmer of light coming from the.................
holographic projector which had been left on standby. Gene pressed the power button and a ghost came at him straight out of the wall. "Primitive but effective." he thought. What was this place hiding