Stalking is repeated or obsessive unwanted attention directed toward an individual or group that is likely to cause alarm, fear, or substantial emotional distress.  Stalking may take many forms, including following, lying in wait, monitoring, and pursuing contact.  Stalking may occur in person or through a medium of communication, such as letters, email, text messages, or telephone calls.  In some circumstances, two instances of such behavior may be sufficient to constitute stalking.