stalking isn't tolerated

This room is built to facilitate those who have crazy and chaotic ideas in their mind. Please keep this room noisy!

This room is supposed to be a place we talk about PSTricks, PGF/TikZ, Metapost, Asymptote, XY-Pic, etc. Please keep this room tidy and clean.

The behavior of \rput and node seem to be difficult to understand. Here, let's talk about them!

For those who know PSTricks to elaborate Herbert Voss' short answer