Properly annealed lampwork glass beads are extremely durable.  I've dropped them on concrete floors, run them through the washer and dryer (again and again), and otherwise abused the poor dears on a pretty constant basis with no damage to the beads.  There's a slightly higher chance of breaking off a piece if the bead has raised decorations or is sculptural in nature as the finer points may offer a weak point if dropped.

As long as you don't purchase non-annealed, factory generated, low-grade lampwork (ie cheap) your beads should withstand a lot of abuse.