A friend e-mailed me the following:

Here are some signs that you won’t find anywhere else in the world except in
Africa:
In a restaurant in Zambia:”Open seven days a week and weekends.”
On the grounds of a private school in South Africa:”No trespassing without
permission.”
On a window of a Nigerian shop:”Why go elsewhere to be cheated when you can
come here?.”
On a poster in Ghana:”Are you an adult who cannot read? If so, we can help.”
In a hotel in Mozambique:”Visitors are expected to complain at the office
between the hours of 9.00 am and 11.00am daily.”
On a river in the Democratic Republic of Congo:”Take note: When this sign is
submerged, the river is impassable.”
In a Zimbabwean restaurant:”Customers who find our waitresses rude ought to
see the manager.”
A sign seen on a hand dryer in a Lesotho public toilet:”Risk of electric
shock. Do not activate with wet hands.”
In a Botswana jewellery shop:”Ears pierced while you wait.”
On one of the buildings of a Sierra Leonne hospital:”Mental Health Prevention
Centre.”
In a maternity ward of a clinic in Tanzania:”No children allowed!”
In a Malawi hotel:”It is forbidden to steal towels please. If you are not a
person to do such a thing, please don’t read this notice.”
A sign posted in an Algerian tourist camping park: “It is strictly forbidden
on our camping site that people of different sex, for instance a man and
woman,live together in one tent unless they are married to each other for that purpose.”
In a Namibian night-club:”Ladies are not allowed to have children in the bar.”