Phred

That was a good answer Karen. Perhaps I can add just a few extras in case anyone including Phred might benefit.

Static can build up in an object; such as rubbing a balloon against woollen clothing. In a car static can build up in a person whilst sliding off a seat then standing on the ground. On a dry day, the shoes insulate the person from the ground. When touching the car, the charge flows (contrary to popular belief) from person to car and partly to earth via the dirt on the tyres. Whoops, I am starting to digress here!!

In your situation, either the dog or person has become charged; and by touching the other. The static is either sent to earth via the other, or the two objects' (dog and man) charge is equalised.

The reason that one of you is charged is due to friction against material. Polyesters and nylons are typical culprits. These not only build up charge but being dry they retain (ie do not dissipate) any static.

Shampoos (carpet, furniture, dog or human) are often formulated to produce dry material (hair, fur, whatever).

As Karen says, touching a metal can help. However, if the dog is the one with the static and you're holding the radiator, the zap will be more intense.

Anyways, the bottom line is: KEEP YOUR HOUSE LESS DRY. A bad air-con will be doing you no favours. Consider not drying clothes at a launderette or tumble dryer with an external vent. Gas cookers and fires can produce a small amount of moisture. If necessary, stick a wet towel on your radiator.

Also, if there is anyone still reading and not bored by my ramblings, remember an overly damp house also has its health problems for people and animals.

Hope this helps. Funny how Karen managed to say the same but much more concisely.