Worried my cat will get sick while I am away on holiday

of excitable behaviour. Mounting behaviour may be intensified by sex hormones, so I would recommend you take Bertie to your vet to discuss neutering. Neutering will reduce any hormonefuelled behaviours plus it has other health benefits. If it is a behavioural habit, your vet can likely recommend a behaviourist to help you work through the problem. this word means he gets ignored, but other ways of behaving or speaking get him attention. It will take time and patience, but eventually he should stop saying naughty words!