Would you like a sausage?

A barbecue! What fun!

Some tips from The Barbecue Cookbook: 
"An often quoted rule is to think of average indoor helpings and then to double them. Keep this in mind and you won't go far wrong. Appetites are large in the open air when the atmosphere is relaxed and food can be seen and smelt to be cooking."

The host.

"Make some arrangements for throwing a little light on the situation. Dusk quickly turns to dark."

The parasite?