Guns take a long time to work (you have to wait for the victim to bleed to death), but paradoxically they end up killing people pretty often.
It is better to open with small talk and wait for the victim to open up.
Then it reset itself, waiting for the next victim...
Then they fell back from the edge, formed themselves again into line, and waited for the next victim.
Maybe they were just waiting for the right victim, any victim.
Sharks normally make one swift attack and then retreat to wait for the victim to die or exhaust itself before returning to feed.
Squatting behind a patch of brush, Carl waited for the next victim to come near.
A hush fell over the crowd as they waited for the victim to be brought out.
The joker would then wait for the victim to walk through the doorway and be drenched by the bucket of water.