Kahlua is Drambuie's identical. He began to show differences in personality - being the instigator of the two. Dram was the easy-going one. Kahlua was the one to get into mischief first. (Dram would follow almost immediately.) Once their collars were removed we could only tell them apart by coloring the inside of their ears with child-safe magic markers; red for Dram and blue for Kahlua. Once he was adopted his new person called him Sambo.