Large pigs do not squeak, they squeal, Guinea Pigs will squeak.
Most animals that squeal usually squeal when the are attacked. These animals are pigs, tapirs, and lots of others.
Pigs do not hum, they snort, grunt or squeal.
You hit him in the balls :) Now seriously... pigs squeal... why would you want a man to "squeal"?
Pigs snort, and piglets usually squeal.
when guinea pigs squeal it mean they are either scared of you, or you have accidentally hurt them in some way or they want you to feed them, Communication.
They Oink ,Grunt,and Squeal
Pigs grunt because it is how they communicate with other pigs. Pigs sometimes squeal when they become agitated by something.
In England they were sold for a guinea and they can sometimes squeal like pigs
Guinea pigs squeal for many reasons, they squeal because they are happy and saying welcome or hi or trying other things to comunicate,but sometimes they squeal because they need attention from there owners,try to figure out what he wants or saying and you will get along better, simple.