How difficult is it to break a steering lock?

[Jacobsroodt]

"Don't mind - they break a steering lock easily" is the common response to using a bike steering lock diligently to deter theft.

But how easy or difficult is it to break a steering lock? For obvious reasons I would not want to try this on one of my bikes...

 

[MildlyWild]

 

[Splash]

 

[Welsh]

 

[petri oosthuizen]

 

[Edgar]

 

[Bappas]

 

[Jacobsroodt]

 

[BuRP]