Both my sister and daughter have had probs with residents(or sub-let tenants?) in flat above. Overflowing their bath and flooding ceiling, and boiler sprung leak - ditto.
A lot depends on which floo ...
Have you cooked it already? - if not, don't cut it lengthways or you'll cut all the strands. They go round'n'round. (and if it's not ripe it'll probably be dead boring)