I found this gem at my former place of work. (A Computer Fixing place can't say name)
the receptacle was still in use until I told the maintenance team about the hazard they did not think it was a problem

Oh the bottom right was feeding a 14A air compressor/tank (Used to blow the dust out of computers)

[Linked Image from images.dr3vil.com]

[Linked Image from images.dr3vil.com]

Theres always enough room in the junction box.You just need a bigger hammer