Pig mode

Here's a cute comment on the Pig Mode feature of the old Apple programmer tool, ResEdit:

When you put ResEdit into "Pig Mode", resources will be compacted and purged each time ResEdit goes through its event loop (several times a second). Basically this means it will slow down the system, so I don't recommend you turn it on for any length of time. But for programmers to really stress their code, it was nice to test with some other poorly behaved program in the background trying to steal all your memory (and scramble it) and take up all the processor time. This was before later versions of Microsoft Word (6.0 and above) were released and did this better.