Oh yes, I have told this story before,,but, Bailey was terrified of the sweeper, he would go nuts, barking nonstop, and lunging at it,, on or off, didn't matter.
So,,, one day,, he has his in the house/training leash on, and I get the sweeper ( totally not thinking) and I start, he appears from nowhere for the attack,, and YEP,,, the sweeper sucked his leash up, I panic, not knowing if I should turn the sweeper off, or try to yank the leash out, well, b4 I decide, he jerks it so hard the leash flys out, and away he goes, under the bed!
So, now when the sweeper appears, away he goes, no barking no lunging, or attacking. I think he saw the sweeper as the Enemy and he was gonna fight it,,,UNTIL,,,the sweeper won,,and now he gave up.
It is so peaceful to run the sweeper now, he goes to another room, or just sits on the couch and watches.