[QUOTE=kiranlegend;509914]It's really sad to see the Ganesh festival become an excuse for some people to get drunk, demand money, and generally disturb others out of their sleep and work
Shouldn't the first part in bold be becoming instead of become?
'become or becoming' - both are possible. A writer might use 'becoming' form if he wanted to emphasize that it's happening right now.
Coming to the second part in bold: Is it that 'their' refering to others?, Yes and also what parts of speech is 'out of their sleep and work'? It's a prepositional phrase. Instead of that can't we write: generally disturb others to be out of their sleep and work?
The combined preposition is 'out of',
see this dictionary link for more examples.
out of - Definition from the Merriam-Webster Online Dictionary
Hope this helps!
Student or Learner