Received anonymously by activists in the UK:

"Bayer director
Professor Angus Muirhead
Maen Melin
Peasemore
Newbury
Berks
RG20 7JF
Tel: 01635 247 584

This very expensive house was visited at the end of october with one intention. To highlight to him and Bayer that while they poison and kill defenceless animals at HLS their property will be attacked. With one car left covered in paintstripper and all the tyres slashed we think they will get the message.

We won't stop ever and your turn will come around again real soon.

ALF"