How do child actors like Abigail Breslin handle it when the adult actors on the set use foul language?

Question

In Little Miss Sunshine, "grandpa" used the "f" word at least twice in about every sentence he said.

Answer 1

as an actress she knows it is only part of the script. it's part of acting and they just have to get used to it

Answer 2

They probably take their little hands and press them upon their ears firmly I suppose. It's either that or simply ignore it beings it's part of the job.