bite the hand that feeds one

(idiom) to hurt a person that helps one

Example Sentences:

The teenaged boy bit the hand that feeds him when he crashed his father’s sports car.

Roger quit the company after they gave him money, support, and training for several years, and after they agreed to give him a vacation. Roger is biting the hand that feeds.

You shouldn’t bite the hand that feeds you.

From the Blogs:

Never Bite the Hand that Feeds You

Media:

Similar idioms:

1. hand-me-down
2. give someone a hand
3. live from hand to mouth
4. bite me
5. bite one’s tongue
6. give one a hand
7. bite the bullet
8. grab a bite
9. give someone the go ahead
10. hand in something
11. bite off more than one can chew
12. give someone the green light
13. tightwad
14. one’s bark is worse than one’s bite
15. grab a bite to eat