You simply can not pass by without him popping a ...

I've seen the thing in the technology market and impulse purchase. It satisfies lowest instincts for the best. The build quality is adequate for the price, but we are afraid that we or a guest times chafe him as one that it flies off the head. Hehehe ...
I think that the sensor has however already get a small damage. Sometimes he cries even if you only go past him ... or it's panic.