Gerard is a sole trader and he owns a farm property. His wife plans to diversify activities and develop five holiday cottages for tourists.

While he was working near the warehouse, stacking small hay bales with the help of a machine,he attempted to removing the obstructing obstacle and two bales of hay accidentally fell and hit Julie BERTIN, who was passing by as she was up to visit a cottage for a possible rental for next vacation.

Although the impact wasn't too strong, Julie BERTIN suffered several bad fractures, which required two surgeries. She therefore had to stop her professional activity for two months.

Question: State the legal issue raised and explain legal reasoning for each legal issue raised (i.e. explain legal principles and apply them to the present situation).

Could you help me answer this question? Thanks