A guy goes into a bar, orders a drink and sits down. At a table across the room sat a an ugly dwarf, nursing a glass of water. He shouts grumpily to the barman for more water, although that was almost unintelligible because aside from being ugly and grumpy, he had a terrible speech impediment. A nasty, unattractive person all round, it seemed.
Soon, a luscious blonde walks in, goes to the bar, orders the most expensive scotch, takes it over to the dwarf and whispers in his ear.
The dwarf downs the scotch, takes the woman's hand, and goes upstairs with her.
A while later they come back down, the dwarf sits at his table and the woman leaves.
Soon, another gorgeous woman enters, buys an expensive drink, approaches the dwarf, whispers, they go upstairs, return, and the woman leaves.

The guy watches a repeat of this 3 more times. Each time it's a different beautiful woman, an expensive drink, and a little while upstairs.
He goes to the bar an orders another drink. Chatting to the barman, he asked about the dwarf and what all this mysterious activity was about.
"I don't know" says the barman. It happens every day many times a day, until the dwarf is drunk, and he leaves. All I know about him is he has a very bad speech impediment, and that's got something to do with his having a ten inch tongue."