A weighted pet leash assembly including a housing for containing the leash in a retracted condition. A demultiplexer acquires various types of data from the transport stream. An engine is mounted to the chassis and includes front and rear cylinder heads joined to an engine block. One or more of the slave devices may transmit data to the master device at a rate of one bit per two consecutive clock cycles. The spacer has a spacer height along the first axis that is based upon the actual measured distance. The strength of a rearward part of the vehicle body is increased to reliably suppress the deformation of the vehicle body in a possible collision from behind the vehicle.