Yes OK, I have heard it before and I should have known better.....
Took my yacht to the local lake (BIG lake) but before I sailed I thought I will just change the batteries. Then, oh damn, not enough new batteries for a complete new set. Ah well just put in what I have and leave some old ones in. Range check, OK. Off she went into the stiff breeze and sailed nicely under control close to shore. A good beat out into the lake, suddenly no control. The yacht started to disappear completely out of control towards the far shore. PANIC.
Very rapid pack of all the gear into the car, 15 minute drive, two bridges later and a very long walk down a railway track and fight my way through virgin forest to the shore line. Ah, there she is with a fisherman trying to pull her in with his net (there are always fishermen about in France). I arrive on the scene and the friendly fisherman now removes shoes and wades in. Rescue complete.
The yacht was fine, I was embarrassed at my stupidity but I now have a new friend as the fisherman lives very near me and French fishermen always have a bottle of wine to hand!
Roger in France.