Everytime my friend and i drink we wake up to something greasy

For context, I live in north texas (in case the humidity affects anything.) My friend and I often have kickbacks or hangouts where we get a little too drunk and pass out in random locations. Without fail, we wake up to something greased up, such as one time when we indulged in a large quantity of champagne. We woke up in my room, and the doorknob was so greasy we couldn’t leave the room without wrapping a towel around the handle. Another time, every single bottle of vodka was so slippery, it was akin to grabbing a wet bar of soap. A separate morning, i went to grab my phone and it was so slippery, it shot out of my hands at a mach ten speed, forcing me to chase it across the floor of my living room. Regardless of the alcohol we drink, there is always an object that becomes covered in a slippery, sticky substance, naked to the human eye. It only happens at my house, and this hypothesis has been tested by bringing the same group of people and type of alcohol to different locations. The grease only appears in my house for some odd reason. Help ?