Pasting Diagrams

Pasting diagrams are the result of one being too addicted to 1-category theory's diagrammatic calculus while trying to make a new one for 2-category theory. Pasting diagrams have some restrictions on what is valid because someone decided to formalize their definition, but I don't understand those yet. If you see an invalid pasting diagram here then…   deal with it I guess   inform me in any one of my contacts if you care.