My dog is an 80lb. mixed breed who just loves to pull the stuffing out of any and every toy. Mr. Bill far outlasted any thing with a squeaker in it because of his speaking box. When the dog started getting a little rough, the "Ohhhhhh Nooooooo!!!" would make him stop. Ahhhh, but it was not to be. Mr. Dog conquered Mr. Bill, but it took him over 2 months to slowly and painfully, bit by tiny bit, get the stuffing out -- first at the nose, then slowly, hour by hour, day by day, then entire head was emptied, and VIOLA...2 months later Mr. Bill no longer had a voice...alll bets were off, he is now nothing but the shell of the toy he used to be. But he's still good to play tug of war with. I already got Mr. Dog another one but I'm saving it for Christmas.