I advised a customer to get BT to complete the data and phone wiring at a new office (they were stuck on contract for 4 more years) including a wall mounted comms cabinet. Around 48 ports over 3 floors with a central 'server room'.
Sub contractor takes 2 weeks to complete the work because they think the customer only needs 30 ish ports ? Wtf was going on in their mind was a mystery to me.
Anyway the BT guy turns up, installs the phone system in the cabinet and it promptly falls off the wall almost killing him and wrecking all the kit inside. BT tried blaming the customer for not having the cabinet fitted properly ? The sub contractor has used one inch plasterboard screws in a brick wall !
The cabinet is now on the floor so it can't fall on anyone else.