The present case study investigated whether the tub-standing of a typically-developing toddler could be reduced by a noncontingent reinforcement procedure. The results of a brief functional analysis suggested that tub-standing was maintained by automatic reinforcement. Noncontingent reinforcement, consisting of presentation of bath toys on a fixed-time schedule, was effective in reducing the number of tub-stands per session. These results suggest that noncontingent reinforcement can be successfully applied to problem behavior in typically-developing children in naturalistic settings. (Contains 2 figures.)