Tuna chunks - warning, contains fish.

The Plain English people have been having a go at silly and unnecessary warning signs - their argument apparently being not only that they are a waste of time and money but also that we are bombarded with so many of them that we are likely to miss or ignore one that really matters - sort of like the little boy who cried wolf. You certainly wonder sometimes about the intelligence of the people who come up with these signs - or perhaps how unintelligent they think we are. A warning on a packet of sleeping tablets stating "may cause drowsiness" for example, or a fold-up push chair which warns you to remove the baby before folding it up. Is this down to stupidity or the fear of litigation?