Snug as a.....?

The recent hot weather in the UK has apparently further stimulated the spread of the bed bug Cimex lectularius (https://www.theguardian.com/uk-news/2018/aug/19/bedbugs-heatwave-sparks-plage-pest-infestation). High temperatures apparently speed up the life cycle of this opportunistic ectoparasite that feasts on our blood whilst we snooze. The little suckers can reportedly be found in all grades of accommodation from fancy hotels to doss houses. London is said to have a particular problem, as a number of tube lines appear to be 'well infested'. The Circle line and the routes from The Elephant and Castle towards both Lewisham and Croydon are reportedly hot-spots. Rather obviously, the carriages need some basic repeat fumigation to prevent people bringing little 'pets' home with them. I suspect that this is resisted as it means delays to services.