  In this note we give simple proofs of several results involving maximal
truncated Calde\'on-Zygmund operators in the general setting of rearrangement
invariant quasi-Banach function spaces by sparse domination. Our techniques
allow us to track the dependence of the constants in weighted norm
inequalities; additionally, our results hold in $\mathbb{R}^n$ as well as in
many spaces of homogeneous type.
