find is actually a class method on each resource, so it'll automatically keep the global params already.
On master:
```
requests = client.tickets.find(:id => 1, :global => 2) # /api/v2/tickets/1?global=2
ZendeskAPI::Ticket.find(client, :id => 1, :global => 2) # /api/v2/tickets/1?global=2
```

You may need to do a little bit to change `update`, I think that's it.