oil on them, perhaps as a means to cancel them? I don't know if putting more oil on them would help the situation. BC with horseshoes is a mystery to me but if they were found with Billy Chips - maybe they pertained to that card room too.

The location 2784 Don Juan Drive is now the parking lot of an Auto Zone store. Beep!

https://www.google.com/maps/place/2784+Don+Juan+Dr,+Rancho+Cordova,+CA+95670/@38.5984215,-121.2878293,17z/data=!3m1!4b1!4m5!3m4!1s0x809add6d4baea8d3:0xfe884a239c5fb67f!8m2!3d38.5984215!4d-121.2856406