As a simple test, transform the participles to verbs. It is possible to upset something. It's a funny little book, and it keeps going on. Occasionally I get irate letters from people who find a boo-boo in it, but many more from people who find it useful. The book is used not only in institutions of learning, but also in business places.
Bosses give it to their secretaries.
My mother just hung it on me because she'd run out of names. From college on, to his relief, he was called Andy. He acquired the name at Cornell, after its first president, Andrew D. White. The nickname was bestowed there on students named White. Mr. White was born in Mount Vernon, N.Y., on July 11, 1899.