You run no benefit but all the possible sides of using a SERM, so don't use it.
EDIT: you may have read places people talking about possible shutdown with SARMs. Generally, if you don't do something stupid like run 4 bottles in 8 weeks, or run the compound for really extended periods of time (like 10+ weeks) you wont see any shutdown, at least not with ostarine. With ostarine, I think some people may see a slight depression of T correlated with a slight elevation of estrogen. I'm sure a similar hormonal response can be elicited by watching an episode of the Jersey Shore; it's really nothing to worry about. If anything, an OTC aromatase inhibitor should be more than fine if you really, really feel paranoid.