FWOF I am sorry to hear about this and can only suggest that you write to the airline and the to the regulating authority which is the CAA. If we do not tell the CAA about these things - then they will never know. This is particularly the case if an intoxicated person (who should not be on board anyway) is seated in an emergency row.
I think the relevant section is:
Responsibilities of the Cabin Safety Office
http://www.caa.co.uk/default.aspx?catid=884
The primary aims of the Cabin Safety Office are:
(there is a list of nine but this is the one that you can use)
* To provide guidance and advice to the travelling public on matters of operational cabin safety.