TheLadders.co.uk surveyed 250 managers about office etiquette, and 96% said stealing food was the worst offense imaginable.
The next peeve was bad hygiene, with smelly breath and dirty clothes cited by 95%.
Other annoyances that scored highly were not offering to share office chores (83%), wastefulness (82%) and loud talking (80%).
Eating smelly food in the office (78%), bad language (75%) and drinking at lunchtime (64%) were deemed slightly less offensive.
74% of managers polled said that they had worked alongside a person who offended colleagues with a complete lack of respect.
But only 12% had actually fired anyone for a lack of consideration for other staff.
I still can’t get past people who steal food from the fridge!