Warning! Contents may be hot
In my last job, the IT dept were once asked to put a warning label on the water boiler (posh kettle thing for brewing up) at work after some dweeb put their hands under the spout. I argued the case for natural selection, but got accused of being awkward and reminded that health and safety was of paramount importance in the organisation.
Armed with the Dymo, I printed out “WARNING: Contents may be hot” and stuck it on the boiler. Looking around, I suddenly saw lots of other potential hazards and figured you can’t be too careful when you employ mouth-breathers. So I labeled up the fridge with “WARNING: Contents may be cool,” the water fountain with “WARNING: Contents may be wet” and so on. I kept going till the machine ran out of labels.
Oddly, that was the only time IT got asked to label something.