There are many activities children will take part in that adults would not. Jumping on a trampoline may be one of those activities. Instructing safe operating procedures and posting rules near the trampoline are prudent safeguards. They may be insufficient safeguards when children are involved.

In Poirier v. Cholette, a British Columbia court found the owners of a trampoline responsible for the plaintiff's injuries. The defendant was aware that children do not always follow instruction and may not read or understand posted rules. The court ruled that the lack of parental supervision lead to inevitable "rough-housing" causing the injuries to the plaintiff.