Interesting stuff AgB,
I remember reading about one pirate, that Bricked up the entrance to a flat in a tower block
It was not right near the top, but floors lower, As they themselves could not get door access, (as well as the DTI)
they Abseiled down from the roof, must have been fit, and had serious harness/ ropes

Another incident, think was Birmingham, they spotted the DTI outside the TX site, As DTI went up to the top
they got down to ground level, DTI looked down to see their Van on Fire
Don't know if above true, or urban legend

The most amazing pirate stuff heard about, in The Netherlands, where they were climbing up Electric Pylons
or bringing Huge Trailer masts with them, using Big high power, (sometimes valve TX)

Rod Watts