It Would Be Lonely Without You

 Regarding the ooze scraped off the UFO, Milo's grandfather proposed two separate paths: Oscar-worthy feigned ignorance or duplicity so seemingly honest and upfront other people would process the fact-garnished information as truth. 

Milo could secure the 12-ounces of alien ooze in a safe deposit box or he could carry it for all the world to see. 

The cylinder, the polymer prison, was scratch proof, uber-resistant to stress and strain, and the thick ooze contained within looked no more suspicious than wet undulating coffee grounds. 

Asked as to the actual origins he could alternate responses.  98% fib, 2% fact, then swap.  Make it wet and juicy or drier than a Friday afternoon Accounting 101 lecture.  His choice.