Once upon a time in a job far away, about 15% of my time was allocated to being the company sysadmin, and as all good sysadmins do, reduced that time to about 5

Once upon a time in a job far away, about 15% of my time was allocated to being the company sysadmin, and as all good sysadmins do, reduced that time to about 5%.....until.... One day, and despite my protests, I had to bin our perfectly fine and well maintained/loved Exchange server for fricken Notes/Domino just because one of the investors had some free licenses. After the migration, everyone hated it and I was persona non grata seeing as it was me who had to switch us over. It never worked properly. I left not long afterwards and the poor sod who was my replacement had the joy of looking after that dumpster fire. edit: opening sentence