>>I don’t think it’s as big a legal minefield as you suggest.
That minefield is a 3 legged stool
1. Actual Legal Liability
2. Perceived Legal Liability
3. PR Liability around the law / legal system
#1 is probably not very big, however if you put a smoke alarm in someones home that does not work correctly or perceived to not work correctly and your a name like Google that the media loves to report on... well #2 and #3 become HUGE.
law suits will be filled, and even if you "win" in actual court, the court of public opinion will not be favorable