I think there is a 1 out of 3 chance that you will be warned about not using the call button as it is "interfering with a flight crew" while they are trying to gossip, read or play games in the galley.
If you were to ring it twice in one flight, I feel sure that there is a 2 out of 3 chance you will be threatened with an air marshal, the Chicago airport police, or a male SFO based flight attendant with the latter threat scaring me the most.