Following reports of bike thieving gangs operating in Leeds (and getting nowt but a slapped wrist) I have binned my disc lock and take a chain and padlock into town. I bought an Autokicker mini pack, just big enough for a F*** - off chain and padlock, looks reasonably unobtrusive on the pillion seat and not expensive. Certainly wouldn't be happy / comfortable with a chain round my waist. These days
my living dangerously goes as far as "Love, I've decided I'm gonna chop my Tracer in for an new (insert bike here) - it's on offer.."
That usually raises the adrenalin in our house for a few days...