I got loads of funnies but, rather than tell you about other people, here's one about me.
We won a contract with a headquarters of a building society. Ground, first and second floor, modern building, darkened glass, really posh in fact. Anyway, we wanted to make a big impression from day one, so we concentrated on the reception, kitchens and toilets. There was 4 of us on site and we were cleaning merrily away.
The last people in the building (as always) were the I.T. chaps and as they would always lock up, set alarms etc we told them that we'd finish with them. Well, we were working on the second floor loo's and it was getting a bit late. I sent one of my cleaners to let I.T. know we wouldn't be long and if they were ok with us being a few more minutes.
The cleaner returned and said that everything was fine. We carried on. Suddenly there was this high pitched 'bleeping' noise. We all stopped. I ran out of the toilet to see the IT man walking over to his car, getting in and driving off. The alarms were setting. About 30 seconds later all hell broke loose, the sirens were deafening. All our cleaner had done was put his thumbs up to the last chap in I.T. He thought it meant we were all leaving having finished!!!!
We gathered in the reception, it was so loud we couldn't even shout at each other. Then, they came, 4 police cars, two vans, flashing lights everywhere. They pulled up at the front of the building, about 10 policemen jumped out of their vehicles, they let dogs out of the vans too. Even a crowd started to gather to see what was going on.
The darkened glass prevented them from seeing in, so there was me looking out of the letter box, waving my business card at the coppers at the front with the snarling dogs! A policeman took it, read it, shouted something and walked away! And we waited, and waited......nothing happened. About half an hour later, Group 4 Security arrived (they were the only keyholders) and opened up. Of course, they sent the bloody dogs in first. So there we all were backed into a corner while all these police pile in.
Luckily (apart from the embarrassment) I knew one of the Group 4 lads, we were at the same school. So, after a brief chat with the police, the alarms were re-set and we went home. Luckily the customer thought it was funny, can't think why?