Wrong sized hammer
People just think you hit it with a hammer, but there is an art to assessing which hammer to use and exactly how much excessive force to apply. And which sacred chant to speak, how much blood is required etc.
Or you can have a hardware problem that you thought was a software problem because you didn't get a blue screen or a kernel panic and that checksum error when uncompressing the massive file just delivered is only a patch away or you should have used supersuperultrazip instead of ultrasupersuperzip which is just for amateurs. And until it was figured out the poor sod was feeling like the only person on the entire planet who was incapable of unzipping a file. Beer therapy fixed that though.