Write cheques for the full amounts you owe people
And then post them to the wrong companies.

e.g. send company A's cheque to B, B's to C, C to A.

Obviously they won't be able to cash them as they're made out to the wrong company, so they won't find out the cheques will bounce anyway. Apologise profusely for your/your secretary's errors, and say that you're terribly sorry but you can't issue new cheques until you've had all the incorrect ones ripped into pieces and returned.

Not a viable long term plan, but it should buy you a week or two without looking like the sort of person that doesn't pay their bills.

_{(Sam: Disseminating highly suspect financial advice on internet forums since 1997)}
(Son of Sam-i-am We're all as mad as hatters here, Tue 16 Dec 2008, 15:38, Reply)