The 24-hour drinking option for pubs put paid to the lock in. Or did it?

The lock in

Time was, when the pubs turned out
The regulars stayed around
The bolts were drawn, and pumps were pulled
And the drinkers went to ground

Now the licence laws have changed
No reason for a lock in
Except, that is, for the puffers
Now ain’t that somewhat shockin’?