Authors:

If at one time or another I have brushed a few colleagues the wrong way, I must apologize: I had not realized that they were covered with fur.

Erwin Chargaff (1978). “Heraclitean Fire: Sketches from a Life Before Nature”, p.6, Paul & Company Pub Consortium
If at one time or another I have brushed a few colleagues the wrong way, I must apologize: I had not realized that they were covered with fur.