Should Harold and/or MegaMart be liable to Beth for assault, battery or false imprisonment? Explain.

Harold, an employee of MegaMart, suspected Beth, a 15 year old girl, of taking several DVD movies and concealing them in her shopping bag. When Beth left the store without purchasing anything, Harold ran after her. Harold grabbed Beth’s shopping bag, examined the contents, but found no DVDs. Harold then grabbed Beth’s wrist and forced her to return to the store, explaining that she needed a good spanking. After Harold was convinced that Beth had not taken anything, Harold escorted Beth to her home. Should Harold and/or MegaMart be liable to Beth for assault, battery or false imprisonment? Explain.