My 12 week English Springer Spaniel will not be left alone???

Hi, we have just bought an English Springer Spaniel puppy (male). He is very adorable but will not be left on his own ever.

iWe have tried a cage in the kitchen with ticking clocks and radios and going in when he stops whining to show him all is well and we are still here.

I have even let him run around in the garden when I collect my children from school. We are only gone 20 mins and he barks the entire time. Often resulting in diaorreah as well.


He then proceeds to urinate 3-4 times in the house. At present he sleeps in our room in his cage but if we go to the toilet he will stand outside howling until I let him in. We have three children 10, 8 and 2.We took into consideration all the pro's and cons of introducing a puppy into the home but did not expect we would never be able to leave the house. He also keeps scratching and nibbling the childrens legs and hands. He has drawn blood twice. I really don't know what to do?? Help me please.