do something at your own risk

Từ điển Oxford Advanced Learner 8th

do sth at your ˌown ˈrisk idiom
to do sth even though you have been warned about the possible dangers and will have to take responsibility for anything bad that happens
•Persons swimming beyond this point do so at their own risk (= on a notice).
•Valuables are left at their owner's risk (= on a notice).
Main entry: ↑risk_idiom