A toilet-bowl mounted sensor , comprising: a receptacle adapted to be mounted within a toilet bowl and to receive excrement therein, said receptacle including: a first side wall , a second side wall , a third side wall , and a fourth side wall , said first and fourth side walls being generally opposite one another, said second and third side walls being generally opposite one another, and said third side wall including a side wall ingress ; and a floor surface attached to said first, second, third, and fourth side walls, said floor surface comprising a wire frame or a mesh including openings suitable for removal of excrement from said receptacle; a pushing mechanism , movable relative to said receptacle and adapted to push content of said receptacle, said pushing mechanism including a movable ingress ; a capsule measuring and/or identification mechanism , adapted to at least one of measure dimensions of an ingestible capsule included in said excrement and uniquely identify said ingestible capsule; a capsule releasing mechanism for releasing said ingestible capsule from said receptacle; and a controller for controlling operation of said pushing mechanism, said capsule releasing mechanism, and said capsule measuring and/or identification mechanism, wherein said capsule measuring and/or identification mechanism includes a hollow formed between said side wall ingress and said movable ingress when said pushing mechanism is adjacent said third side wall, said hollow being suitable for enclosing said ingestible capsule. a receptacle adapted to be mounted within a toilet bowl and to receive excrement therein, said receptacle including: a first side wall , a second side wall , a third side wall , and a fourth side wall , said first and fourth side walls being generally opposite one another, said second and third side walls being generally opposite one another, and said third side wall including a side wall ingress ; and a floor surface attached to said first, second, third, and fourth side walls, said floor surface comprising a wire frame or a mesh including openings suitable for removal of excrement from said receptacle; a first side wall , a second side wall , a third side wall , and a fourth side wall , said first and fourth side walls being generally opposite one another, said second and third side walls being generally opposite one another, and said third side wall including a side wall ingress ; and a floor surface attached to said first, second, third, and fourth side walls, said floor surface comprising a wire frame or a mesh including openings suitable for removal of excrement from said receptacle; a pushing mechanism , movable relative to said receptacle and adapted to push content of said receptacle, said pushing mechanism including a movable ingress ; a capsule measuring and/or identification mechanism , adapted to at least one of measure dimensions of an ingestible capsule included in said excrement and uniquely identify said ingestible capsule; a capsule releasing mechanism for releasing said ingestible capsule from said receptacle; and a controller for controlling operation of said pushing mechanism, said capsule releasing mechanism, and said capsule measuring and/or identification mechanism, wherein said capsule measuring and/or identification mechanism includes a hollow formed between said side wall ingress and said movable ingress when said pushing mechanism is adjacent said third side wall, said hollow being suitable for enclosing said ingestible capsule. <EOS>