1. When you get annoyed at the fact they use Windows at school.
2. You look at the hardware and software of school computers and price how much each computer costs. (Dell Optiplex, 512 MB RAM, Pentium 4, 80 GB HD, about 3000$ of software + 800$ hardware = about 4000$)
3. When you tell your friends how much RAM and what kind of processor and what clock speed the processor is of the video game systems they own.
Not funny ones, but true.