A penguin takes his car to the shop and the mechanic says,  “It’ll take about an hour for me to check it out.” 

 While he waits, the penguin goes to an ice cream shop and orders a sundae to pass the time. The penguin isn’t the cleanest eater, and he ends up covered in melted ice cream. 

When he returns to the shop, the mechanic takes one look at him and says,  “Looks like you blew a seal.”  

“No,” the penguin insists, “it’s just ice cream.”