No alliances would certainly fall under that category, especially when those alliances are everyone else against one individual (me). Waiting until just before you get tagged to call "time" or calling "time" out of earshot of the It is also unethical. Calling time and then running away to re-enter the game at a safe distance is questionable. In fact, I'd argue that "calling time" has no place at all in a tag system with proper checks and balances, but my peers assure me that this view is outdated.