Sentence 1: I went to the bathroom today and noticed the dog needed to be fed. 
 Sentence 3: I spent some time preparing his food 
 Sentence 4:  After preparing the food I fed him 
 Sentence 5:  He ate every single bit! 
 Option 1: After using the bathroom I went to the kitchen. 
 Option 2: After using the bathroom I went back to bed.