[Gpdd] HEALTH: Vibrating piggies

[Marty]

Dee-

I think what you have there are PURRING piggies! They're content. If your 
girls nap while you're holding them they aren't nervous.  They have complete 
trust in you.

Different piggies purr at different things. One of my Bridge-pigs purred 
when you rubbed a certain spot on his back.  Sid and Tiger both purr when 
I'm holding them, especially if I have the radio on.  Sid will purr at me 
when I talk to him.

If a pig makes a purring sound and runs into a hiding spot then a noise 
might have alarmed her.  If it's a long drawn out wiggle-butt purr it's a 
sign of attraction directed at another piggie. Otherwise, that vibration is 
a happy little pig. :)