The scene is a general store, with the Storekeeper behind the counter. The counter is easily represented by a long table with a few items piled on it.
Behind the Storekeeper is a curtain, which conceals another Scout, the Storekeeper's Son. He has a full change of clothes with him.
The Skit
The Storekeeper introduces himself. He explains that this is his store and his Son helps him to run it. He is very proud of how hard he works to satisfy every customer, no matter what the customer wants.
A customer enters, walks up to the counter, and asks for a hat. The Storekeeper turns and calls out, "Hey Son, I need a hat." The curtain moves, and a hand reaches through with a hat. The customer admires it, and they agree on a price. The customer pays, puts on the hat, and walks out acting pleased.
Other customers repeat the process for a jacket, a shirt, shoes, socks, and a pair of pants. Each time, there is more movement of the curtain, and a longer delay before the clothing is handed through the curtain. There are sounds of grumbling, and the Storekeeper reminds his son about their commitment to sell whatever the customer needs.
The last customer walks in hesitantly and asks in embarrassed tones for underwear. The Storekeeper does not hear him, and makes him repeat it until everybody can hear clearly. Finally he says, "Oh of course. Underwear! Son, we need some underwear." Nothing happens.
The Storekeeper repeats his request several times, each time emphasizing the word, "Underwear." There is no answer. He apologizes to his customer for his lazy son, and says he will get the underwear himself. He stomps off behind the curtain.
The curtain shakes, and we hear, "No, Pa! No, Pa! No!" The Son runs through the curtain and across the stage wearing only underpants.