Light curve and model for OGLE-2018-BLG-0932. The anomaly is a bump centered at 8273.5. Unlike most smooth, isolated bumps, this one is due to a source passage over a minor-image caustic, with the smoothness due to the fact that source is very large compared to the caustic (see inset). Among the 10 events analyzed here, this is the only one for which the source-size parameter ρ = θ_*/θ_E is precisely measured.