I don't know if it's just for me but I'm always disappointed with the way immigration people put stamps in your passport. they do it in a way which allow to suspect they have myopia, glaucoma, hand tremor and severe motion disorder. And they do it without any regard to how much space is left in traveler's passport. their biggest glory is to spoil a free page - needless to say that you have lots of pages already stamped - they manage to find empty one and put their stamp in the middle.
It is just inconsiderate!
I know some countries provide grid on passport pages, supposedly to help "targeting" - but as far as I noticed it does not work.

AX