I'll call back later cheap medication Over the centuries, we have used dogs' natural abilities to help us in all aspects of life. We use dogs' intelligence and loyalty to guide the blind, their noses to sniff out bombs in wars, their endurance to pull us over treacherous freezing conditions. We use their sight and speed for hunting, and their strength for protection. Some say dogs may also have a sixth sense. Most people put this down to them having the ability to read our every minute movement. However, when I was young I always used to know when my grandparents were going to pop in unexpectedly as our spaniel used to sit by the front door 10 minutes before they arrived. At a young age I didn't think much of this, but now that memory astonishes me.