Senseless but infallible logic

[Eckhart]

I went to see my grandad today. He has carers come in each week, and one of their weekly jobs has been to change the sheets on his bed. However, he's now instructed them to only do this fortnightly, because he only sleeps on half of the bed.

Has anybody else got any examples of this amusing sort of 'WTF' logic?

Genius.. Wonder if dc would use this method??
Dh's logic last month- to apologise for waking me up during the night and thus 'forcing' me to sleep in the spare room - was to wake me up at 6 am to apologise for waking me up at 2 am. Perfectly acceptable /logic to him...