You question made me smile. I have never yet met a professional root doctor who has a "fear" around doing revenge spells or reconciliation spells. I have never yet met one who has "issues" (meaning unresolved emotional issues) around these types of spells, either.
Mama Micki and Aura gave great reasons both including the question of ethics and reaching beyond ethics, for why certain root doctors don't like to handle Reconciliation or Revenge work. I will add a couple more ideas.
First, you need to understand that obsessed and/or deranged clients are a problem that each rootworker must handle.
Obsessed and/or deranged clients tend to run from reader to reader and from worker to worker hoping against hope that someone will fix their issue. These people won't take "no" for an answer, and if you are the one who gives them a time-line for the work or who honestly tells them "this work won't succeed," they may bad-mouth you and say you are "not strong enough" or they may keep running from worker to worker until their money runs out and then start bad-mouthing rootwork or magic in general, saying "it's all a scam."
This is not true of ALL rootwork clients, but we have all noticed the phenomenon, and some of us don't like dealing with obsessed and/or deranged clients.
Now, here's the difficult thing:
Reconciliation and Revenge work attract a higher percentage of obsessed and/or deranged clients than, say, career-growth work or new-love work do.
This is not to say that any given Reconciliation or Revenge client is "obsessed and/or deranged," but it is a well-known to professionals that a HIGHER PERCENTAGE of clients seeking those particular services are "obsessed and/or deranged."
Obsessed and/or deranged Reconciliation clients have a MUCH higher than average tendency to promise that they will not do something (like, for instance, not start an argument with their ex, or not stalk their ex's girlfriend on Face Book) and then to turn around and do exactly what they promised not to do. In other words, they are not honest with their spiritual adviser. This is not true of ALL Reconciliation clients, but we have all noticed the phenomenon of the promise-breaking obsessed and/or deranged Reconciliation client, and some of us don't like dealing with these clients because, by their own actions, they undercut the work they have hired us to do. We want to succeed, and sometimes we can't, because they are non-compliant or they engage in outright sabotage of our best efforts on their behalf.
Obsessed and/or deranged Revenge clients who want to hire a "killer" root doctor are another category of problem for professional root doctors. People who ask us to curse or kill on their behalf are more likely than other clients to be
* lying or fabricating a fake justification for the revenge or cursing work,
* clinically insane,
* difficult to deal with,
* affected by alcoholism or drug addiction,
* of the opinion that throwing money at us will overcome our dislike of their personalities
* engaged in illegal lines of employment
Some of us do not want to deal socially with people of this type at all, regardless of whether they may be clients.
It may seem like "throwing out the baby with the bathwater" to refuse to serve Revenge or Reconciliation clients just because there are more "obsessed and/or deranged" clients seeking those forms of work -- but some workers set their boundaries to limit their clientele, just the way that some restaurants require that patrons wear shoes or formal clothing or they will not be served. And not every restaurant serves the same menu. Throwing money into a Thai restaurant will not convince the owners to serve you pizza.
Finally, as Aura noted, even those who, in public, say they won't do Reconciliation or Revenge spells, may actually do so for clients whom they know, trust, support, and like.