put a foot wrong

bark up the wrong tree

To take the wrong approach to a situation; to follow a false lead; to attempt to solve a problem using mistaken assumptions about its true nature.

do somebody wrong

To treat someone badly or unfairly.

fall into the wrong hands

To become the possession of, or be discovered by, an unfriendly third party.

foot the bill

To pay for something.

foot voting

Expressing one's preferences through one's actions, by voluntarily participating in or withdrawing from an activity, group, or process; especially, physical migration to leave a situation one does not like, or to move to a situation one regards as more beneficial.

get into the wrong hands

To fall into the wrong hands.

get one's foot in the door

To initiate contact or a relationship; to gain access, especially to an entry-level job.

get out of bed on the wrong side

To start the day in a bad mood for no apparent reason.