have blood on one's hands

take matters into one's own hands

To deal with a problem alone instead of waiting on others (often perso…

have someone's blood on one's head

To be responsible for someone's death, pain, or misfortune.

have another think coming

To be deluded, to be mistaken; to need to rethink something one has de…

have another thing coming

Alternative form of have another think coming.

have at

To attack; to engage in combat with.

have second thoughts

To change one's opinion, or be uneasy about a previous decision.