Xena XZZ6 Disc Alarm Lock: A Review

... no-one likes the person whose alarm goes all night....

How sensitive does this thing have to be? Mine goes off the moment my key touches it. I have experimented and found it goes off with much lighter touch than, say, the pressure of a pen writing on paper.
That means I treat my neighbours to a minimum of two bleeps every morning. This morning there was some rust on the pin as well so my neighbours had to endure two full cycles of the actual signal going full blast before I had wrestled the thing open.
Oh and the rust came only four days after I bought it, having been inside a shed in a period of relatively sunny weather.
Can it be that I received a dud or do the rest of you have these issues?

I.. Tate Modern on Saturday..... Two bikes locked there had some sort of alarm lock on and both were screaming. ...

And I also fear that with alarms like these going off all over London willy nilly, people will stop noticing them. I mean, who even bats an eyelid when they hear a car alarm these days?