finger trouble
n.— «The system is user friendly, provides comprehensive computer data-checking features and is robust to operator finger trouble.» —“Conference Abstracts” Journal of the Operational Research Society Dec., 1983. (source: Double-Tongued Dictionary)
Further reading
There was a time when William Shakespeare was just another little seven-year-old in school. Classes in his day were demanding — and all in Latin. A new book argues that this rigorous curriculum actually nurtured the creativity that later flourished...
One secret to writing well is … there is no secret! There’s no substitute for simply sitting down day after day to practice the craft and learn from your mistakes. Plus, childhood mixups around word definitions can lead to some funny stories...