AFAIK it is not forbidden for a Muslim to touch pigs, only to eat them. Pigs and dogs are impure, but you can perform ablution afterwards. Muslims normally own hunting and guarding dogs. That would actually be a common problem for Coalition soldiers in Iraq when they tried to enter a village by stealth - lots of barking.
"This impureness nevertheless doesn't imply that one might not touch a pork, but that one might need to wash his hands and maybe even re-do the ablution to be able to pray after touching it."
https://islam.stackexchange.com/questions/48791/is-it-haram-...