It seems that the hot weather has got to some people, and tempers have boiled over into personal insult.
It's time to call a halt, and I'm going to lock the thread, but before I do, and for the record....
Sharing your connection with a neighbour is a contravention of your contract with your broadband provider. Quite apart from that, it's a pretty stupid thing to do - what are you going to do when he decides he'll pass on your access details to his mate over the road, and that mate passes it on to Dave at number 23?
I repeat - sharing a connection in this way is a breach of your contract, and it's daft.