อ่านประโยคนี้แล้วไม่ค่อยเข้าใจ   He ate lots of fish, drank very little wine, and used to sing — behind closed doors, and out of earshot to exercise his lungs.

แล้วก็ตรงนี้ครับ He would go out for a long walk every morning, striding quickly up hills so as to get out of breath. In case he had any good ideas while out he had a special stick made with an inkwell in the handle.   

ตรง  In case he had any good ideas while out he had a special stick made with an inkwell in the handle.   คือก็ยังงงๆอะครับ  stick made with an inkwell in the handle  นี้คืออะไรครับ