We have a wasp nest in the bathroom roof - they are going in and out through the slates and the council bloke who came to look (from the ground!) said that with a bit of luck they won't bother us after the babies have grown and gone. (He also said they won't return next year but I'm not convinced...)
Well the babies are now emerging - DD1 was watching them today and she said it was the cutest thing, all these tiny wasps creeping out of the gaps in the slates and flying bravely, for about 6", and then turning and darting back in again...awwwww.
(Of course when we have 100s of full-sized wasps dive-bombing us in the backyard I won't be impressed but just for now it is sweet!)