My silly ideas... Do the TPA in the rear magura al lthe way up, so the brakes locked. Take off the front wheel, and keep it in your room. And weigh down the bike, add random spikes to it if needed, to make it awkward to carry. That way, they can't ride it anywhere, even if they do undo the TPA, there's no front wheel. Put the bike behind a load of clutter. Any rubbish in your garage or whatever, move it out the way, put the bike there, then cover it. Make sure you get some noisey stuff around it too, so if they do happen to see the bike, they'll have to scramble over all the crap, or try and move it all out the way. Cover the bike in locks. Will cost a fair bit, but will be a bitch to get through before you spot them. Have a huuge ones going from wheel to frame, and another one bolted to the wall, wrapped around the bike. Wire up the bike to some electricity. If they touch the bike, they'll get a huge electrical shock, that will stun them, and no doubt will make the scream/shout. Thus waking you up, catching them, then ringing the police with a stunned bike theif sat in your garage. Hope you don't take these seriously... Goodnight.