Square sky

Spent most of the day filling bins with oats to dry. In between spent a lot of time fixing things that my staff have spent all week breaking! Went to grease the baler ready to bale silage tomorrow (hopefully) only to find every grease gun I tried was empty! 4 refills later and job done. The cloud started coming in tonight again and I noticed this square or sunlight over the Pentlands. Strange cloud formation indeed.