BIBLE PROPHECY: THE LAST TRUMP! What If It's Not What We Think It Is?

There are two major theories in the Christian community as to what the "last trump" refers to (Rosh Hashanah and the 7th Trumpet Judgment), but what if we're wrong? What if the Rapture isn't dependent on either one of these ideas? What if there's a third possibility that makes the timing of the Rapture completely unpredictable?