Crush recently made an appearance on EBS's 'There is No Such Thing as a Bad Dog' season 2, where he got dog training advice after revealing his dog's aggressive tendencies.
During the broadcast, the singer revealed that his dog, Dooyou (soy milk), is aggressive towards other people. In front of his owner, the dog is lovable and cute, but when it comes to meeting new people, Dooyou will turn into a devil to the extent where he bites people's fingers.
Crush further shared an instance when his father came to visit, and the dog bit his father's nose. Hearing the situation, dog behavior specialist Kang Hyung Wook stated that Dooyou's timid nature results in more aggressive behavior toward strangers due to Dooyou's intentions to keep Crush and his home safe from danger. As a result, Crush received training to fix his dog's behavior.