They may be a nuisance at  this time of year, but wasps have a very important role to play in the local ecosystem, eating a lot of the bugs gardeners delight in spraying with poison.

Though it resulted in their undoing, take a look at the wonderful things they can make to house their colony. 

http://www.theguardian.com/environment/2014/aug/27/giant-wasps-nest-single-bed-spare-bedroom-winchester