Specific But Harsh Curse? Options

So I went to a concert with my friend today. The concert was AWESOME. However, his dad called saying we had to be out at seven (it started at 6) because my parents wanted me home. My parents were leaving that night and had said that I could metro home or he could drive me, any time was okay. I texted my dad to make sure and then my friend put me on the phone with HIS father, who insisted that my father was lying to me. I offered that maybe there had been a misunderstanding and he insisted. I said something along the lines of "You're the liar here. If you want us to leave then say so and we'll leave, but don't lie to me about what my father said or insult my father to my face." He got his back up and started freaking out.

So the friend I was with is a really good friend of mine and I don't want to harm him... His father, on the other hand, will get majorly fucked up one way or another. I'm an elemental magician who specializes in tides, waves and weather, so anything I do will be relatively large-scale, so I'm not effective here with my current skill set.

Does anybody have any curses that are specific to the victim and will not harm anybody else? I don't want to KILL him, just put him through hell one way or another without harming my friend. Anybody have something that will cause sickness or something?

Also I'm staying with a family friend at the moment and don't have much privacy to perform lengthy rituals... any suggestions? I'm also open to things like binding and such if you think that will be effective.

I've never cursed anyone before and it's against my principles as a light-wielder, but I'm putting this under the category of "respect thy parents" since him insulting my father is what made me mad and hoping God can forgive me for one transgression.

Can someone help me out?

terrible Karmic ramifications

Interesting, are we talking about Buddhist karma?