Is it a bird? Is it a plane? It's ScrumMaster!

My brother works as a software engineer and recently attended a course on Scrum, a technique used in software development. He got to keep this stylish shirt afterwards and can now proudly claim the title of "ScrumMaster".

He described it to me as some kind of pseudo-religious experience - the front of the T-shirt reads "In Scrum We Trust" :)