I've been brutal to my BBeans. Started them off in itchy-finger flurry in Jan, sprouted well infront of the radiator, grew & grew.
Remember that brief warm spell? put them out to harden off, went out for the evening, came home about 11pm: BBeans keeled over in the icy cold. Thought "Sod it" and left them.
All bar two (from 8 tubes - 7 sprouted) survived and were outgrowing their loo rolls. Planted them two weekends ago (final unsprouted loo roll actually showing leaves) with some seeds straight into the ground to boot. They seem tough little b*ggers so far, so lets see what they can do.