User agent is just 'freeze', came in three times from geniune off site links (same site different pages), taking just text files (the same ones each time) no images, all in the space of one hour. About 8 different IP numbers, 217.7, 212.35, 208.27, 63.109, 194.228, 200.210, 211.233....
Each visit was 'coherent', not at all aggressive, clearly the same person.