Abstract: Mailbox has a hinged front gate with a casing receiving a flag with lateral play for movement into raised and lowered positions to indicate "no mail" and "mail delivery", respectively. Provided on the flag and box are two ferromagnetic strips, respectively, of which at least one is a permanent magnet, with these strips being coordinated to be in the raised flag position in magnetic engagement for supporting the flag, and the strip on the flag will on opening of the gate turn with the latter and thereby disengage from the strip on the box for release of the flag for its gravitational drop to its lowered position.

Abstract: Compost toilet having in the waste receptacle thereof a gate in the form of two hinged companion wings swingable into closed and open positions in and out of the path, respectively, of urine passed into the receptacle by a user of the toilet in standing position, with the wings having scattered leakage paths through which urine passed into the receptacle in closed gate position will trickle into the waste matter below.