Unfortunately, the presence of extortionate mobile roaming fees acts as zero deterrent to some of the pond-life that can be found on the end of a Nokia in Britain today...witness the numerous stories in the summer silly season headlined "xxx red-top's intrepid journalists uncover true extortion of calling home for holiday Brits" etc. etc. (the question of why the illiterate feckers don't read their pricing plan is curiously left unanswered...)

Personally, I hope BA install airtight booths for phone-using customers.