8th February (1918)

My touchy mule has gone clean berserk.  Before they removed the frost nails, he kicked a large piece of steak out of the rump of the nearest horse, it is now in the sick lines; and today he has lamed my other donk whose knee is swelling visibly.  I’m hanged if I know what to do with him.  Has also returned to his nipping practices and eliminated small bits of skin from the necks of his neighbours.