Just a pedant's question: are they fuzes or pistols? My thinking is pistol, but I can't remember the type.
PN is on the right track with the motorcycle story. There are tools that can be used remotely to remove a fuze/pistol. The IGOL (I Go On Living) dates from WW2; it is a circular device that is clamped to the fuze and two sprung 'hammers' are operated by a long cord (very long!). The IGOL was superseded by the Rocket Wrench. Imagine a Catherine Wheel clamped to the fuze and fired by two 0.5in electrically fired cartridges mounted opposite each other. The fuze is spun out and a bungee attached to a stake pulls it clear. The German EOD guys are hugely experienced and no doubt had their own methods. I just hope it was not the way an American 20lb Frag bomb was tackled when uncovered at Gutersloh. As per the protocol the German EOD was informed and were escorted to the site. I did not witness the render safe as when one of the men produced a hammer and chisel I found I had urgent business a couple of hundred meters away. But it worked, and I expect they had done it dozens of times.