Lamb hit the post with a drop-goal attempt seconds before the interval but the hosts extended their advantage straight after the restart as sometime England winger Ojo picked off an interception and showed a clean pair of heels as he strode over from halfway for an unconverted try.
He crossed the stream, picked a double handful, washed the muddy roots clean in the current and then sat down again beside his pack and ate the clean, cool green leaves and the crisp, peppery-tasting stalks.
