Rear spoiler brackets removal

Has anyone ever removed these without breaking? Can't see anything securing them so I'm currently assuming they clip in via expanding locating plastic pins and we all know what happens when we try to take these sorts of things off!

http://williamsclio.co.uk/forum/atta...tid=7091&stc=1

I think the only way to get these off is to punch the pins in , but then you cant get the pins out unless your lucky, or try and pull the pins out sometimes you can with a bit of fiddling

yep push the pins into the tailgate then the clips come off easy

Thanks guys.