I'm planning to come in someones jacket as revenge.
I hope you're only joking. Why would you get revenge like this?
Well, it's an awful smell. Second, it's just a terrible thing to do to someone!
It's wrong to try to get revenge on people, as this makes you just as bad as they were in the first place.  Furthermore, you shouldn't ruin people's clothes, and ejaculating onto someone's property is frankly obscene.
If a person is a fuck face, I'll make their life worse as well as their belongings.
It's understandable to be upset if someone did something mean to you, but getting revenge on them by ejaculating on their clothes is just wrong. It's disgusting and will ruin their jacket. If you go through with this, it will just make them want to retaliate against you, and this cycle will just continue.