Complex sentence: He got off with a warning, but continued to make troube for himself when he persuaded Ricky Butcher to buy him alcohol, and was witnessed drinking by Dot Cotton, who was appauled to see an underage boy getting drunk, and she promptly informed Carmel.
Split into simpler sentences: He got off with a warning, but continued to make troube for himself when he persuaded Ricky Butcher to buy him alcohol, and was witnessed drinking by Dot Cotton. Dot was appauled to see an underage boy getting drunk, and she promptly informed Carmel.