Not a good idea to smoke cigarettes on a rocket launch pad

It's usually inadvisable to smoke cigarettes whilst loading rocket fuel on a launch pad, from Perry Mason "The Case of the Misguided Missile"

it's also a bad idea to drink liquor whilst on duty:

If you think it's expensive to hire a professional, wait until you hire an amateur... pic.twitter.com/Zsu1Si9LeQ
— smartword (@smartwordUK) January 6, 2015