Toward Ecosophy

After you've been practicing magic for as long as you have, are you able to tell when nasty magic is being directed at you (assuming said sorcerers aren't publicly putting out the call to mass curse JMG on such-and-such a day and time)? What's that like? You're sitting drinking tea any typing away at your next book when all of the sudden... "Someone is trying to curse me!" Is it like a Spidey-sense that tingles?