Ah,
Danny, the days when the Approach Room would be IMC in tobacco smoke
At Tengah we had
nice ashtrays, fashioned from 'spare' domed taxiway lights, mounted in a circular aluminium strip-metal base. However, the ultimate sin was spilling you Coca-Cola on the desk, as it would permeate the mini-comms landline switch panels and, when it dried, apparently created an electrical circuit. Ground Radio then had to replace the unit, and perform detailed and delicate cleaning processes. Curiously, we had a Coke machine in the tower, so the peril was ever-present.
Undoubtedly
everything is banned nowadays.
