||A battery is intentional or reckless infliction of unlawful force or personal violence - urinating in someone's drink is not inflicting force, and it is not inflicting personal violence.
||It wouldn't be a defence to careless driving, so if someone did something monumentally stupid to let an emergency vehicle through, then they could still be punished for it.
||For many offences , it is going to be **very** difficult to prove a defendant's guilt without the support of the victim, so often charges are dropped.
||But a form of destruction which causes instant death - such as shooting in the head - cannot be said to cause unnecessary suffering and so is not unlawful.
||An owner can destroy their own property.
Vertebrate animals are slightly different from other forms of property in that it is also illegal to cause them unnecessary suffering.
||In which case his urine would be poisonous, destructive, or noxious, and the offence would be complete.
||Common assault if it results in no injury.
||"Making" is usually more serious than "possessing" - which makes sense, since you'd want to punish those who produce this material harsher than those who merely consume it.
||I removed the post my comment related to, it was a stream of vitriolic abuse and wishes for violenc.
||Ignore section 3 Criminal Law Act 1967.
||section 24 of the Police and Criminal Evidence Act 1984 confers a power on a police officer to arrest people, and thereby force them to come to a police station when they wouldn't ordinarily do that.
||Both acts are disgusting, but to claim that they are "personal violence" is far beyond the natural definition of either of those words.