Battery Cable Help

[Goose]

I have partially run the tests for current flow, but before I go further thought I would ask a question. My initially reading with everything off is 0.069 amps. There was no change when I removed the alternator wires or the voltage regulator connector. The current flow increased to 0.920 amps when I disconnected the horn relay. I don't understand that result. If the relay was bad in someway shouldn't the amperage draw be reduced when it is disconnected? Thanks for any insight.