I owned a hot tub for 10 years no problems. But in the past year or so I've had a couple of cases of vandalism and unauthorized use. Fortunately a good neighbor told me who the offender was. I told there mom, but problems continued I put in a security camera and just now finally got it working. Its set for motion detect. If I catch the little brats anywhere near my tub, I won't be telling Mom any more.
When we go away for more than a day, we try to not let them know we are going. The last time we went away for a weekend, they broke my cover locks to get in.