In short don't. I see so many people who try to save a few bucks and end up needing additional work back home just to get back to where they were. Complaints at best meet a wall of silence, at worse threats
Agreed 101%, Radgirl ! Put more succinctly than I ever could have. I believe here in the UK the NHS will also (grudgingly !) fund whatever restorative work is needed in the case of a botch-up . . . . . but just ask yourself, is it worth the risk and hassle (and possibly PAIN ! ) just to save a few bucks in the first place ?