Yeah. Been there..
Called by one of our more technologically challenged users.
Phone turret not working. One of the almost indistructable 3820's.
Get down to client  Ask usual questions.
Client had of course done nothing that may cause the issues. However, turret is total Dodo.
Pick it up... And.... Get a cup of cold coffee down my shirt.
Fairly simple diagnosis from that point.a few choice words were exchanged. Well actually the conversation was one sided.
She did offer to get my nice CT shirt dry cleaned.
Roll on pint time....
Have a good weekend all...
 Same client who took recabling every desk to the board as it was obviously cr*p because pushing her bag right under her desk was pulling extension leads apart regularly.
Gaffa tape fix.