You should never pressurise anyone into making an explicit image. It is against the law to take or hold an explicit image of someone under the age of 18.
From 2016 the law will require that all dogs are microchipped and wear a collar bearing a secure ID disc or waterproof tag with clear contact details of its owner. Dogs are not permitted to circulate without their owners and can be seized as a stray under such circumstances.
If the police find you in possession of a Legal High, they will treat you as if the drug is illegal – which often means arresting you. The drug will be analysed and if found to contain an illegal drug, you will be prosecuted. If it contains a legal drug, then there are no charges.