So I did my weekly paperwork. My weekly expense/pay record is an Excel spreadsheet. Actually it used to be an Excel spreadsheet, but I couldn't find my MS Office installation CDs after I bought my new computer, so now I use Open Office. I'm too cheap to buy whatever the latest release is. I have to keep track of where I am each night and how much I spent on things like fuel and extension cords and Febreeze. The "where" is always in the form of a four letter airport identifier. Concise, unambiguous and easy for the boss to match with the logbook if he needs to check up on us.
If I've been staying in the same place for a few days I'll update the spreadsheet just by selecting the cell where I last typed an identifier and copying the information down into the subsequent cells using what I think is called the drag handle. This works fine to make a column of seven CYZF entries or four times CYXE. But when I'm working out of some little airport that has numbers in the identifier, Excel tries to get clever. If I'm in Killarney, Manitoba and have logged CJS5 into my spreadsheet, when I drag it down it autoincrements, and one finds that on subsequent nights I have stayed at CJS6, CJS7 and CJS8. I often don't notice until the increment reaches 10 and the five digit code gets my attention. I would be annoyed at the software for trying to outsmart me, if it weren't so funny. I laugh every time and just change it back.
I also manage to annoy my coworker by accidentally implying that (a) she doesn't communicate with me, (b) she was somehow responsible for my losing my battery clip and (c) that I left an apple core in the cockpit. Fortunately I found the battery, properly disposed of the apple core and I think she's forgiven me for the miscommunication. And I got the printer to behave, but I still hate it. Hates it, nasty printer.