On Christmas Eve a tired engineer realized to his dismay he had forgotten to get his wife a Christmas gift.
He frantically scanned the stores, and saw a pet store that hadn't closed its doors yet.
He went in and explained his predicament. The clerk thought about it for a minute, and explained they had pretty much been cleared out, except for a little parakeet named Chet. "I don't know why he hasn't sold", the clerk explained, "He does some nice Christmas tricks".
The engineer expressed interest, so the clerk took him to a little bird in his cage. He lite a match, and held it well under his left foot.
Chet burst into song, "Silent Night! Holy Night!" and sang the whole song through.
Then the clerk lite another match, and held it well under his right foot.
"Jingle Bells, Jingle Bells, Jingle all the Way!", and sang it all the way through.
The customer was very pleased, and bought Chet and all the accessories he needed.
Later, his happy wife and man were laying in front of the fire drinking their egg nogg looking up at their new pet, and his wife asked, "What happens if you hold the match between his legs?"
"I don't know", the engineer said, and tried the experiment forthwith.
Silence.
"Chet's nuts roasting on an open fire..."