"Ex turpi causa non oritur actio" is the illegality defence, the Latin for "no right of action arises from a despicable cause". If the claimant is involved in wrongdoing at the time the alleged negligence occurred, this may extinguish or reduce the defendant's liability. Thus, if a burglar is verbally challenged by the property owner and sustains injury when jumping from a second story window to escape apprehension, there is no cause of action against the property owner even though that injury would not have been sustained "but for" the property owner's intervention. However, a trespasser may be able to recover damages due to the unsafe state of the premises (see Occupiers' Liability below).