me: I have plans today, sorry dude. I would advise you you and your friends to refrain from swimming in the lake. its tricky to swim there, now you and your friends are drunk that will increase the risk factor. Id rather not.
friend: come on man, its not THAT bad, don't be such a wussy. just come on, lets go, were walking anyway, besides were just swimming nothing will happen.
me: I told you NO. goodbye I already told you to not go swim if you don't listen to me, you will be sorry later. you might get hurt. I already told you make the right choice. I am. bye.