They are probably just sensitive. avoid acid and candy. if that doesn't work just take a break from the trampoline.
A barrier would be a person has an injury and can’t work out or a person lacks knowledge of how to work out correctly. Hope this helped! :)
<span>Lockout-tagout (LOTO) or lock and tag
is a safety procedure which is used in industry and research settings
to ensure that dangerous machines are properly shut off and not able to
be started up again prior to the completion of maintenance or servicing
work.</span>
