There's a time and place for everything and that time and place isn't lunchtime in the children's library at Gypsy Lane.
This dirty sod has been banned from Sheep City because the managers there support the idea of banning customers found perving in the local studies library. We can't ban him because T.Aldous "isn't sure of the legalities involved in excluding him from the library." We can't touch him ("Who would want to?" ask staff).
Pansy and the girls limit his access to one particular PC which they ostantatiously spray with Milton Fluid once he's finished.