Which reminds me ...
At the risk of boring you to death. About six or seven years ago I was sitting in the 'bar' (actually the garage) of a mate's place and was positioned next to a largish double sliding glass door which gave access to the rear of the house. Whilst enjoying the afternoon sunlight beaming through the glass (that's the door, as well as the hand held one!) I noticed a wasp wandering up the pane. It was about 2" to 3" long and was dragging a huntsman spider up the door. I had heard of wasps paralysing spiders and laying their eggs within but had never seen the act. Anyway, interesting as that was at the time, some twelve months ago I had a wasp buzzing around in my workshop - it's not unusual and usually ignored - which finally got itself tangled in my hair (what's left of it.) Naturally I brushed it away. When I did it dropped its load; a load that I had not realized it was a'carrying. The bounty which it had lost landed on the keyboard of my computer which I was using at the time; it was the legless body of a huntsman! Urrgh! It turns out that the wasps paralyse the spiders, nibble off their legs at body level and then lay their eggs and secrete them within the little dirt cells that they build. It gave me the shivering quits for a couple of days, I can tell you.