Hi-de-Hi! S01E07 - No Dogs Allowed

In the throes of his divorce, Jeff has to take care of his estranged wife's sheep-dog, Bubbles, but, due to Maplin's No Pets policy, has to hide the dog in his chalet. Hearing noises, people assume he is entertaining a young lady and Gladys is not pleased though all is revealed when a private eye, hired by Jeff's wife to catch him out with a member of the opposite sex, bursts into his room.