tread on someone's toes

tread (or step) on someone's toes

offend someone, especially by encroaching on their privileges.
See also: on, toe, tread
References in periodicals archive ?
You may have to tread on someone's toes to do it though.
To find out more 0901 6093141 TAURUS (April 21/May 21): Think carefully before issuing invitations for the weekend you may tread on someone's toes.