[anononaut]

Clearly the pranker needs to switch to Colemak or Dvorak to be maximally effective!

[yjftsjthsd-h]

As security-through-obscurity tricks go, using an unusual keyboard layout to avoid shoulder surfing is probably one of the better ones.

(Note that like all obscurity-based systems, this isn't actually secure so much as a minor impediment, but for this kind of trick that's fine)