I bet on “difficulty with problem solving” + paranoia considered how stupidly he’s running the whole stuation.

Physical Effects

Damage to the urinary tract – Ketamine abuse can cause inflammation, scarring, and ulcers in the bladder, urethra, and kidneys. This can lead to difficulty urinating, frequent urination, and even kidney failure.

Respiratory problems – Chronic use of ketamine can result in respiratory depression and damage to the lungs.

Heart complications – Ketamine can increase heart rate and blood pressure, which can strain the cardiovascular system and lead to heart problems.

Musculoskeletal issues – Prolonged use of ketamine can cause muscle stiffness, weakness, and even paralysis.

Mental Effects

Cognitive impairment – Long-term abuse of ketamine can impair cognitive function, including memory loss, decreased attention span, and difficulty with problem-solving.

Mood disorders – Ketamine abuse has been linked to the development of mood disorders such as depression, anxiety, and psychosis.

Addiction – Like many other drugs, ketamine can be highly addictive and can lead to psychological dependence. Chronic users may struggle with cravings and withdrawal symptoms when attempting to quit.

I think top tier is Hilti (Swiss) , expensive of course.

But Bosch, Metabo and Festool are reall good choices ayway.