Forgot to mention that the man got rid of his dangerous bees in the end.
Heres some info from the sussex county council website.
Bees and Neighbours
Beekeeping is a wonderful hobby. Bees are interesting creatures, with a fascinating life. Unfortunately not everyone appreciates this and unless care is taken in keeping and siting colonies, trouble can result.
Stings
The only fact about bees that most people seem to know is that they sting. The closer a person is to an active colony, the more likely they are to be stung.
The possibility of non-beekeepers being stung is reduced if:
Bees are NOT kept in small gardens or close to houses
The bees kept are known to be docile
Manipulation of colonies is performed whilst neighbours are at work
Colonies are kept in sheltered apiaries behind naturally high barriers
Drinking Bees
Bees need to drink like any other creature. Non-beekeepers can view this harmless activity with alarm since bees often choose to drink from places like the edges of ornamental ponds. The beekeeper can help by providing water for his bees. The simplest way to do this is by standing a large plant pot full of peat in a reservoir of water. Do not let it dry up. It cannot be emphasised too strongly that drinking bees are harmless.
Overflying
Bees normally fly about 5m above the ground but problems can occur from bees flying out from their hives and returning to them. In windy weather over open ground, bees fly very low because it is less effort. They only rise to fly over obstacles in their path.
The beekeeper can help by sheltering the apiary site with hedges or shrubs. It also helps if hives can be faced away from neighbouring properties. In addition, the height of the boundary fence can be raised by allowing hedges to grow to about two metres in height. A temporary barrier can be formed from sparrow-proof netting which bees will not readily fly through.
Cleansing Flights
After winter confinement in the cluster, bees' early flights on sunny, spring days can result in anything in the vicinity of the hives being spotted with faeces. If this includes neighbours' laundry or cars, then their resentment is understandable.
This nuisance can be reduced by making sure that the bulk of the winter stores is well-ripened sugar syrup. Feeding should be finished by mid September. High barriers round the garden will also help to keep the bees on cleansing flights circling near their hives.
Swarms
Neighbours will not necessarily welcome swarms into their property. No beekeeper can guarantee preventing all swarms. However, the chance of swarms can be reduced to a very small percentage indeed.
You need:
To keep all queens clipped
To have adequate spare equipment
To use a simple, effective method of swarm control
To make sure hives are not over-heated by the summer sun
To seek help from a really experienced beekeeper if required
Number of Hives or Colonies
There have been cases brought to court where the beekeeper kept an enormous number of colonies in their garden.
Sheer number of colonies can worsen all the problems touched on so far. It is impossible to give any definite figure. Modern suburban gardens are not suitable at all. Larger gardens, depending on their size, could safely house a number of colonies.
Rights
Beekeepers have the right to keep bees. Their neighbours have the right to enjoy their property in peace.
Badly kept and positioned colonies can be a nuisance.
Unfortunately, what the neighbour might see as a nuisance is likely to be given more consideration in a court than that which the beekeeper sees as an interesting characteristic in his bees. Bees harmlessly drinking water from a pond may well, therefore, be deemed a real nuisance, even if all the beekeepers called to give evidence state the opposite.
Avoiding Confrontation
Any beekeepers confronted with an angry neighbour should not be aggressive.
Try to talk the problem through and take some positive action to attempt to allay the problem. It could well help to talk through with your neighbours the intention to keep bees. Share some of your honey with them and always emphasis the pollinating value of bees to the environment.
If the neighbour is the sort of person who is constantly worried about the bees, then it is likely that beekeeping next door will never be a pleasant experience. It would be simpler to keep your bees in out-apiaries and avoid any problems.