McDonald’s Corp is standing by its latest Happy Meal toy, denying that its Minions are the foul-mouthed playthings that some of its fast-food customers say they are. In videos posted online, some customers said they heard a curse when, by tapping one of the tiny plastic caveman characters against a hard surface, they activated its voice. In a statement, McDonald’s denied the toy used bad language, and a company spokeswoman said there was no plan to pull the toy from distribution.