When you’ve started writing something with a biro and it seems to work perfectly fine for the first few words and then starts running out. Usually when you’re writing something important such as a message in a greetings card.
Frustration, characterised by sighing, followed by panicky dithering as you try to work out whether to persevere with that pen and whether anyone will mind that the ink got gradually more feint, or whether to get a new pen and write over the words you’ve already written to make it look consistent.
What causes it?
One of those things. But, also, foolhardiness. Pens should always be tried and tested before you use them for anything important.
Who is affected?
People who write with biros. People who throw caution to the wind.
Can it be avoided?
Yes. Give every pen a good, vigorous scribble before you risk using it to write in a greetings card. And make sure you have several of the same type of biro, so that if the worst happens, you can at least carry on seamlessly.