
The ones I've seen using them were in sports halls so there were plugs (one was using straighteners too).
It was raining at our breed show last weekend, luckerly I had just brought my girl a new coat, she doesn't like the rain and walking about shows when the floor was wet her chest and belly would get soaked so I got a coat that goes under the chest too so she stays much dryer, but I've seen people at shows with long coated breeds like afgans in full body coats, and some with boots and hoods too.