He never does.

See my sign up there ?" He pointed to the rocks near the grotto.

"I did it with Hugo's shoe blacking." A placard containing the important announcement, "NO FISHING ALOUD" stared down at the poachers from a tree trunk above.

There was nothing very peremptory in its appearance, but its designer was sufficiently impressed by the craftiness it contained.
"I put it up so's people wouldn't think anybody--not even me--would dare to fish here.

Oh, look!" The second of his ruddy mess was flopping in the grass.