I love my RF-602 Yongnuo triggers, they have changed my life

HOWEVER they are as loose as a loose thing on the canon hotshoe and have no locking mechanism on either the receiver or transmitter. I managed to catch my 580EXII as it fell off the light stand once but it was a close call.

Do any other users have any tips or mods that might be helpful? (and don't say 'should have bought PWs'...)