The next time you see a filthy business centre keyboard, it is probably a good reminder that you should not be using business centre computers anyway. Except to print a boarding pass if your airline does not have an app for an electronic boarding pass.

https://www.us-cert.gov/security-pub...siness-Centers

There are any number of ways these public computers can and will be compromised. Whatever keystrokes including passwords that you use to log onto your email or corporate networks may be recorded by criminals. The USB drive you use to carry documents to print in the hotel may be infected when you plug it into the compromised machine and carry malware back to your home computer.

Not worth the risk.