Taking the p***?

It sounds as if someone is having fun at the expense of The Vale of Glamorgan Council.
Bi-lingual signs that should have read 'Cyclists dismount', were actually printed saying ' bladder inflammation upset' :) Oh how we laughed....

From BBC News Wales : -

Cyclists were left confused by a bilingual road sign telling them they had problems with an inflamed bladder.

The "cyclists dismount" sign between Penarth and Cardiff became "llid y bledren dymchwelyd" in Welsh - literally "bladder inflammation upset" (or tip or overturn).

The Vale of Glamorgan Council said new signs were being made.

It is possible that an online translation led to confusion between cyclists and cystisis.

The temporary sign at roadworks is to be replaced.