My husband and I gave our son a bicycle -- a red Huffy, "Cars" model -- for his fifth birthday.
After the birthday party guests left, my husband and son stayed up late to put the bike together. They installed the handlebar and pedals, put the training wheels on and adjusted the seat to its lowest level. (My son, on tiptoes, can just touch the floor.) They checked the tires, deciding they need more air before he begins riding it.
They installed the bell, which my son excitedly rang then left this phone message for his uncle: "Guess what I got for my birthday." My brother phoned back to guess, "a new bell for your bicycle." He left a similar phone message for his grandma.
Next morning, my son was sitting contentedly on his new bike in the living room when he started to make it go. He rode into one of his birthday presents, a baking kit from an uncle, aunt and his younger twin cousins.
The can of pressurized icing exploded, spraying blue stickiness onto his new cowboy apron, cookie mixes, raisins and "spoonula." Fortunately, all of it was contained in the gift bag. The rider was not injured.