Richard is your neighbor, he is very reclusive and you have never heard him speak. 

One morning, you notice that his dog ran away, Richard was outside looking for him everywhere. All this time the dog was in your garden, destroying some flowers. You walk up to your neighbor with his dog in arms, Richard's eyes light up and he finally speaks.

"T-t-thank y-you." The truth is that Richard stutters, he's afraid he'll be laughed at, that's why he almost never talks.