Excellent job.

[chindraba-work]

I don't "tweet", so comments get stuck here.

Commenting is spot on, enough to explain choices (i.e. avoiding 4+ caps in a row) sparse enough to stay out of the way. Comments are done well enough that while I'm not a parselmouth, I could very well follow the code.

Suggested improvements:

• If the starting number is high enough, say 20+, you could add in a number "slip"
  • Skip a number, then come back to it; 12, 11, 10, 9, 7, 8, 6, 5 ...
  • Repeat a number, skipping over the next one; 12, 11, 10, 9, 8, 8, 6, 5 ... or 12, 11, 10, 9, 8, 8. 7, 6, 4, ...
  • A number slip could also be a sobering thought, increasing the concentration when the number of bottles is found to be miss counted :)
  • The sobering up could be a temporary decrease in the drunkeness score, the value of which is returned (doubled?) after a few more beers.
• When "typing" a random character, make the replacement weighted in favor of a close substitute, such as 3 for e, 4 for h or a, ! for i, etc.
  • As the drunkeness score increases, the weighting can decrease
• Random Unicode could make it even more interesting: 33 bottles of bəeər on the llɐʍ...
• If the output method can handle it, perhaps add in an occasional "correction"; typing it wrong, backspacing and retyping it correctly, or less incorrectly anyway
• Clean up the comments, (typos, and such, detract from the polish on the piece)

Happy coding.

sláinte mhaith

[AndroidTaylor]

This is good, I am gonna get started on this right away!