One friend of mine says the same all the time... In fact, he's the worst driver I've ever driven with! In reality, I am much better and even exponentially better than the average driver.
All my printers at work and at home are brother now. Never had any issues and setup was satisfyingly easy each time.
Albeit, I only bought laser printers (BW and Color), so I don't know how fast the ink empties or dries. However, the printer toner last quiet long, even the knock-off ones.
He bet 10€, that there are 2 students with the same birthday in the classroom of (abt) 30 students.
The class was allowed to work out, if they want to accept the bet, or not (exchanging birthdates was not allowed ofc).
Usually the students think, that it's nearly impossible, and accept the bet. Little did we know, that the probability of success was around 70% for the teacher.
There are some which are guided via gps now. However, i won't trust them being so precise.
For me/us burying a guide wire was the better solution. Some manufacturers even claim, that you dont have to burry the line cos it will be overgrown by grass after a short amount of time.
The map does not make any mistake!