[As ever, Zim doesn't care what other people want, especially when what they want is actually harmful to him. He scoffs at that, in an 'I don't care' kind of tone.]

It's a lot less wet.

[Which is also extremely important here. He starts waving his left hand, the one holding the pen.]

Anywhoo, this disgusting place will be a tiny amount less disgusting once I get rid of it! You'll all be begging me to accept your inferior gratitude!