Vacations are so much fun. We work towards them all year round, yet when the time comes, the break goes far too quickly! Well, a vacation passes quickly for us humans, however, for the pets that we leave behind, a day must feel like a year. Our pets love us so much that they just hate to see us go! From the minute they see us getting our case ready to pack for our trip, our pets will do everything they can to put a spanner in the works! Just like these 15 hilariously clingy pets who just can't bear to see their owners leave! Take a look!