This sign takes useless to a whole new levelCredit: SuppliedThis bemusing sign asks people not to throw rocks at itCredit: SuppliedAnother pointless sign is aimed at driversThis sign advises against swimming despite there being no water in sightThis sign takes the award for biggest contradictionThis bizarre sign advises caution against sand – in a desertCredit: SuppliedAnother sign that somewhat states the obviousThis fireside sign points out that fire is hot – for anybody that didn’t already knowThis sign about sharp edges seems to have its priorities mixed upThis sign doesn’t make for the most productive workplace