SDC - yes - one will find all sorts of people in Buddhist (and other) centres. Using discernment skillfully is a must - what I colloquially call "going with your gut". If anything should 'smell' - I say run away - or - keep some distance.
Sometimes, however, we want something so badly (tanha - leading to uppadana) that we don't listen to that gut. Tanha and uppadana can get a person every time if they're not careful!