Laughing is contagious

Laugh, that is what you should do when you’re feeling sad, upset, lonely or angry. My name is Samantha Simpsons but you can call me Sam, people say my laugh sounds like an old, wrinkled and evil witch cackling but I don’t really care what they say, and you shouldn’t either. What does your laugh sound like? Is it loud? Is it quiet? Is it embarrassing? Is it squeaky like a mouse? What makes you laugh? Do you like your laugh? Rats and monkeys can laugh. Apparently, humans were able to laugh before they could speak. Laughing is contagious.