It was a mad, roaring time, full of extravagance.

his halting speech

He was a propa gadgie, and always bought we drinks after a long shift. He was a great guy, and always bought us drinks after a long shift.

This multiple enzymogenesis of the same activity from different superfamilies is again analogous to the situation for ADHs and PDHs, where different forms belong to either of these two superfamilies.