In the evening I go home from work, tired, the whole day laid networks, set up comps, dropped routes, set up firewalls...

Behind me a guy walked, we approached the elevator together. I go in, turn around, and by habit I ask:

Which to you?
The fifth... – without any fear the guy answers...
- OK - I say and I start ticking the lift buttons: 1,9,2,1,6,8,1,4,3,...

And only when the elevator (by some miracle not going crazy, touched to go to some random floor) came to me the realization of what happened... I turn to the guy, and the one in the corner pressed and eyes like a frog, he looks at me not glimpsing... Apologized to him - said that he reworked, he seemed to believe, but from the elevator all the way, he ran out afterwards...