Which preposition to use with ticklish

as Occurrences 3%

Hearing that the drama was investing its talent in Abolitionism, I went one evening to the theatre, to see if I could extract as much fun from the metropolis of a free state as I had previously obtained from the capital of slave-holding Maryland; for I knew the Americans, both North and South, were as ticklish as young ladies.

for Occurrences 2%

Then the pilots of the place put out brisk and leapt on board; "Why, what hope or chance have ships like these to pass?" laughed they: "Rocks to starboard, rocks to port, all the passage scarred and scored, Shall the 'Formidable' here with her twelve and eighty guns, Think to make the river-mouth by the single narrow way, Trust to enter where 'tis ticklish for a craft of twenty tons,

Which preposition to use with  ticklish