Stone fish bites can cause severe pain and necrotising venom. The venom is best allowed to diffuse naturally. Infection is common, and marine bacteria are often resistant to common antibiotics. Wound cleaning with fresh or sterile water is essential. Trimethoprim-sulphamethazole is the first-line antibiotic. Tetanus prophylaxis should also be considered. In medical research, summary measures are recommended for analyzing repeated measurements. However, their use is not always valid, as they may not account for dependencies between measurements. Summary measures should be chosen based on the study's aims and data inspection, not on habitual practices. The analysis of serial measurements is complex, and some topics were excluded from the paper. Summary measures can be meaningful if they address specific questions and are appropriately chosen. Confusion between ophthalmic dropper bottles and other containers can lead to errors. Distinctive shapes for ophthalmic bottles are suggested to prevent this. Multiple dose containers may also lead to cross-infection and irritation from preservatives. Single-dose, sterile containers are recommended for all eye drops and ointments. Training for accident and emergency departments is important. A course for senior house officers has been effective, with many topics found useful. Feedback has led to the addition of psychiatric emergencies and common orthopaedic mistakes to the course. Objective skill testing showed that tutored doctors performed better than untutored doctors. Orthopaedic surgery is an important area in accident and emergency training, and it was not mentioned in a previous study.Stone fish bites can cause severe pain and necrotising venom. The venom is best allowed to diffuse naturally. Infection is common, and marine bacteria are often resistant to common antibiotics. Wound cleaning with fresh or sterile water is essential. Trimethoprim-sulphamethazole is the first-line antibiotic. Tetanus prophylaxis should also be considered. In medical research, summary measures are recommended for analyzing repeated measurements. However, their use is not always valid, as they may not account for dependencies between measurements. Summary measures should be chosen based on the study's aims and data inspection, not on habitual practices. The analysis of serial measurements is complex, and some topics were excluded from the paper. Summary measures can be meaningful if they address specific questions and are appropriately chosen. Confusion between ophthalmic dropper bottles and other containers can lead to errors. Distinctive shapes for ophthalmic bottles are suggested to prevent this. Multiple dose containers may also lead to cross-infection and irritation from preservatives. Single-dose, sterile containers are recommended for all eye drops and ointments. Training for accident and emergency departments is important. A course for senior house officers has been effective, with many topics found useful. Feedback has led to the addition of psychiatric emergencies and common orthopaedic mistakes to the course. Objective skill testing showed that tutored doctors performed better than untutored doctors. Orthopaedic surgery is an important area in accident and emergency training, and it was not mentioned in a previous study.